CN114062355A - Total nickel test pack and preparation method thereof - Google Patents
Total nickel test pack and preparation method thereof Download PDFInfo
- Publication number
- CN114062355A CN114062355A CN202111324732.2A CN202111324732A CN114062355A CN 114062355 A CN114062355 A CN 114062355A CN 202111324732 A CN202111324732 A CN 202111324732A CN 114062355 A CN114062355 A CN 114062355A
- Authority
- CN
- China
- Prior art keywords
- sub
- chamber
- capsule
- cavity
- bag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Plasma & Fusion (AREA)
- Engineering & Computer Science (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention provides a total nickel test pack and a preparation method thereof, wherein the method comprises the following steps: the pretreatment reagent pack A comprises ferrous sulfate powder, cuprous oxide powder, a reducing agent and an acidic pH regulator; a detection reagent pack B, wherein the detection reagent pack B is an alkaline solution of oxime compounds; the total nickel test pack and the preparation method have the advantages of high detection accuracy, wide application range and simplicity in operation.
Description
Technical Field
The invention relates to the field of water quality monitoring, in particular to a total nickel test pack and a preparation method thereof.
Background
Nickel is an essential vital element of human body, and has a very small content in human body, wherein normally, the content of nickel in adult human body is about 10mg, the normal concentration in blood is 0.11 mu gNi/ml, and the daily requirement of human body for nickel is about 0.3 mg. Excessive intake of nickel can cause harm to human body, and a large amount of oral administration can cause emesis, diarrhea, acute gastroenteritis and gingivitis, and long-term contact with nickel can whiten hair, poison the whole body, cause damage to lung, liver, brain, cardiac muscle and kidney, and induce lung cancer.
Therefore, the state sets a series of standards for the nickel content in various water bodies, for example, the total nickel emission limit value in the sewage is Ni less than or equal to 1.0mg/L as specified in the Integrated wastewater discharge Standard GB 8978-1996; the total nickel emission limit value of newly-built electroplating enterprises and enterprises with electroplating facilities is regulated to be less than or equal to 0.5mg/L in the discharge Standard of electroplating pollutants GB 21900-2008; the total nickel emission limit value of Ni is less than or equal to 0.1mg/L in areas with high development density, weak environmental bearing capacity, small environmental capacity and fragile ecological environment and easy serious environmental pollution.
In order to detect the total nickel content in a water body, the traditional total nickel determination methods mainly comprise methods such as a dimethylglyoxime spectrophotometry (GB11910-89), an inductively coupled plasma emission spectrometry (HJ776) for determining 32 elements in water quality, an inductively coupled plasma mass spectrometry (HJ700) for determining 65 elements in water quality and the like, but the methods have the problems of difficult outdoor detection, high detection cost, harsh experimental conditions, long detection period and the like in the daily detection process.
In order to solve the technical problems, a plurality of kits or test packets capable of rapidly detecting the total nickel content in the water body are developed by the japan ltd co-vertical chemical research institute, the wenzhou medical university, the shandong entry-exit inspection and quarantine inspection technology center, and the like, and the kits or test packets have the advantages of small volume, portability and no need of depending on large-scale detection instruments, so that rapid detection can be conveniently and rapidly performed outdoors, but the analysis shows that the existing kits or test packets for rapidly detecting the total nickel content still have the following disadvantages:
firstly, the existing kit or test pack for rapidly detecting the total nickel content mainly detects inorganic nickel ions in a water body, and has poor detection capability and low accuracy for organic nickel ions in a complex state in the water body, so that the application range is very limited, and the accuracy is low;
secondly, the existing kit or detection package for rapidly detecting the total nickel content usually contains a plurality of detection reagents, a user needs to carefully read the use instruction during operation and sequentially add specific detection reagents according to the use instruction, and once the operation fails, the current detection fails, so that the operation difficulty is high, the error rate is high, and the use experience of the user and the effective utilization rate of the product are finally reduced.
Disclosure of Invention
The invention designs a total nickel test packet and a preparation method thereof, and aims to solve the problems of low detection accuracy, small application range, high operation difficulty and high error rate of the conventional total nickel test packet.
In order to solve the above problems, the present invention discloses a total nickel test pack, comprising:
the pretreatment reagent pack A comprises ferrous sulfate powder, cuprous oxide powder, a reducing agent and an acidic pH regulator;
a detection reagent pack B, wherein the detection reagent pack B is an alkaline solution of oxime compounds;
and the standard color level C is a system obtained by reacting nickel standard solutions with different concentrations with the detection reagent packs A and B in sequence.
Further, the pretreatment reagent pack A comprises, by weight, 10-30 parts of ferrous sulfate powder, 5-12 parts of cuprous oxide powder, 3-5 parts of a reducing agent and 8000-20000 parts of a dilute sulfuric acid solution with a concentration of 8%.
Further, the detection reagent pack B is a mixture containing 0.2-0.3 g/L of dimethylglyoxime, 3-5 g/L of masking agent, 30-50 mL/L of glycol and the balance of ammonia water-ammonium chloride buffer solution.
Further, the total nickel test pack further comprises:
the medicine bag is internally provided with a plurality of bag cavities for respectively accommodating the pretreatment reagent bag A, the detection reagent B and the standard color level C;
the outer shell is coated on the periphery of the medicine bag.
Further, the medicine bag comprises:
the sampling tube is arranged at the upper end of the first sac cavity in a bendable manner;
a first capsule in which the pretreatment reagent pack A is stored;
a second capsule in which the detection reagent B is stored;
the colorimetric capsule cavity is used for storing a mixture system formed by reacting part of water sample to be detected with the pretreatment reagent packet A and the detection reagent B;
and the standard color scale sac cavity is internally provided with the standard color scale C.
Furthermore, a plurality of breaking lines are arranged in the first capsule cavity, the space in the first capsule cavity is divided into a plurality of sub-cavities through the breaking lines, and each sub-cavity is used for storing different components in the pretreatment reagent bag A.
Further, the partition line includes: the first isolation line, the second isolation line, the third isolation line and the fourth isolation line;
the first breaking line and the second breaking line divide the upper space in the first bag cavity into a first sub-cavity positioned in the middle area of the upper side of the first bag cavity and a third sub-cavity and a fourth sub-cavity positioned on two sides of the first sub-cavity;
the third breaking line and the fourth breaking line divide the lower space in the first bag cavity into a second sub-cavity positioned in the middle area of the lower side of the first bag cavity and a fifth sub-cavity and a sixth sub-cavity positioned on two sides of the second sub-cavity;
ferrous sulfate powder and cuprous oxide powder in the pretreatment reagent bag A are stored in the third sub-chamber and the fourth sub-chamber respectively; the reducing agent in the pretreatment reagent pack A is stored in the second sub-chamber; the dilute sulfuric acid solution in the pretreatment reagent bag A is stored in the first sub-chamber.
Further, the height that the lower extreme place of first disconnected line is less than the height that the upper end place of third disconnected line was located, the height that the lower extreme place of second disconnected line was less than the height that the upper end place of fourth disconnected line set up the sealing clamp on the first bag chamber, the sealing clamp centre gripping is in the first disconnected line, second disconnected line, third disconnected line and fourth disconnected line's that separate the intersection will the lower port of first subchamber, third subchamber and fourth subchamber with the upper port of second subchamber, fifth subchamber and sixth subchamber seals simultaneously.
Further, the total nickel test pack further comprises:
the first sac cavity, the second sac cavity and the colorimetric sac cavity are sequentially communicated through the infusion tube;
the hot melting wire is a destructible hot melting wire arranged on the medicine bag, and when the hot melting wire is destroyed, the cavities on two sides of the hot melting wire are communicated;
the hot fuse is in including setting up first hot fuse, the setting between advance appearance pipe and the first bag chamber are in second hot fuse and setting between first bag chamber and the second bag chamber are in the third hot fuse of the juncture of reaction chamber and hybrid chamber in the second bag chamber.
A preparation method of a total nickel test pack is used for preparing the total nickel test pack, and comprises the following steps:
s1, preparing a medicine sac;
s2, processing a first hot melt wire in the medicine bag;
s3, processing a separation line in the first capsule cavity in the medicine capsule;
s4, preparing a pretreatment reagent pack A, and oxidizing ferrous sulfate powder in the pretreatment reagent pack A
Cuprous powder and an acidic pH regulator are respectively filled into the appointed sub-chambers;
s5, clamping the sealing clip at the staggered position of the separation lines;
s6, filling the reducing agent in the pretreatment reagent bag A into a designated sub-chamber;
s7, processing a second hot melt line on the medicine bag;
s8, preparing a detection reagent pack B;
s9, filling a proper amount of the detection reagent bag B prepared in the step S8 into a reaction cavity in the second capsule cavity;
s10, processing a third hot melt wire on the medicine bag;
and S11, sealing the lower port of the colorimetric sac cavity.
The total nickel test pack and the preparation method have the following advantages:
firstly, under a weakly acidic environment, cuprous oxide and ferrous sulfate are utilized to generate hydrogen peroxide and hydroxyl radical, then under the combined action of the ferrous sulfate, the hydrogen peroxide and the hydroxyl radical, complexing agent removal treatment is carried out on the complex nickel ions in a water sample to be detected, after free nickel ions are released, specific color reaction is carried out on the complex nickel ions and an alkaline solution of oxime compounds, namely a detection reagent bag B, and finally the total nickel content in the water sample to be detected is determined by comparing the result of the color reaction with a standard color gradation C. Therefore, on one hand, the total amount of the nickel ions in the inorganic state and the organic state in the water sample to be measured can be accurately measured, so that the measurement result is more accurate, and meanwhile, the application range of the total nickel test pack can be increased, so that the total nickel test pack can be widely applied to measurement of the nickel content in various water bodies such as drinking water, domestic sewage, industrial wastewater, natural mineral water, industrial boiler water, agricultural irrigation water, natural rainfall, river water and the like; on the other hand, the whole detection process is realized without depending on large-scale precision detection equipment, and can be conveniently used for real-time detection of outdoor water bodies.
Secondly, the structure of the medicine bag used for storing each detection reagent in the total nickel test bag is optimized, so that on one hand, the operation steps of a detector are simplified, and the success rate is improved; on the other hand, in the whole detection process, all detection reagents in the test pack are not in contact with the outside, so that the environmental pollution caused by outflow or random discarding of the detection reagents is avoided.
Drawings
FIG. 1 is a schematic perspective view of a rear housing according to the present invention;
FIG. 2 is a front view of the rear housing and the sachet of the present invention;
FIG. 3 is a schematic view of the internal structure of a first cavity in the sachet of the present invention;
FIG. 4 is a side view of the rear housing and capsule of the present invention;
FIG. 5 is a schematic perspective view of the rear housing and sachet of the present invention;
FIG. 6 is a schematic diagram of a front view of a total nickel test pack according to the present invention;
FIG. 7 is a schematic diagram of a side view of a total nickel test pack according to the present invention;
FIG. 8 is a schematic perspective view of a total nickel test pack according to the present invention;
fig. 9 is a schematic view of an end structure of the sampling tube according to the present invention.
Description of reference numerals:
1. a medicine bag; 101. a sample inlet pipe; 1011. a sample introduction end; 1012. a spring plate; 1013. a fixing sheet; 1014. folding; 102. a first bladder cavity; 1021. separating the wire; 1021a, a first break line; 1021b, a second break line; 1021c, a third break line; 1021d, a fourth break line; 1022. sealing and clamping; 1023. a sub-chamber; 1023a, a first subchamber; 1023b, a second subchamber; 1023c, a third subchamber; 1023d, a fourth subchamber; 1023e, a fifth subchamber; 1023f, a sixth subchamber; 103. a second capsule cavity; 1031. a reaction chamber; 1032. a mixing chamber; 104. a colorimetric capsule cavity; 105. a standard tone scale pocket; 106. a transfusion tube; 106a, a first infusion tube; 106b, a second infusion tube; 107. hot-melting wires; 107a, a first fusible link; 107b, a second fusible link; 107c, a third fusible link; 2. a rear housing; 201. a rear floor; 202. a rear side plate; 203. an outlet pipe orifice; 3. a front housing; 301. a front panel; 302. a front side plate; 303. and operating the window.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
A total nickel test pack comprising:
the pretreatment reagent pack A comprises ferrous sulfate powder, cuprous oxide powder, a reducing agent and an acidic pH regulator;
a detection reagent pack B, wherein the detection reagent pack B is an alkaline solution of oxime compounds;
and the standard color level C is a system obtained by reacting nickel standard solutions with different concentrations with the detection reagent packs A and B in sequence.
The detection principle of the total nickel test pack is as follows: under a weak acid environment, cuprous oxide and ferrous sulfate are firstly utilized to generate hydrogen peroxide and hydroxyl radical, then under the combined action of the ferrous sulfate, the hydrogen peroxide and the hydroxyl radical, complexing agent removal treatment is carried out on the complex nickel ions in the water sample to be detected, after free nickel ions are released, specific color reaction is carried out on the complex nickel ions and an alkaline solution of oxime compounds, namely a detection reagent bag B, and finally the total nickel content in the water sample to be detected is determined by comparing the result of the color reaction with a standard color gradation C. Therefore, on one hand, the total amount of the nickel ions in the inorganic state and the organic state in the water sample to be measured can be accurately measured, so that the measurement result is more accurate, and meanwhile, the application range of the total nickel test pack can be increased, so that the total nickel test pack can be widely applied to measurement of the nickel content in various water bodies such as drinking water, domestic sewage, industrial wastewater, natural mineral water, industrial boiler water, agricultural irrigation water, natural rainfall, river water and the like; on the other hand, the whole detection process is realized without depending on large-scale precision detection equipment, and can be conveniently used for real-time detection of outdoor water bodies.
Further, the pretreatment reagent pack A comprises, by weight, 10-30 parts of ferrous sulfate powder, 5-12 parts of cuprous oxide powder, 3-5 parts of a reducing agent and 8000-20000 parts of a dilute sulfuric acid solution with a concentration of 8%.
Of course, the amount of the dilute sulfuric acid solution may be reduced as appropriate as the concentration of the sulfuric acid increases.
Preferably, the pretreatment reagent pack A comprises 20 parts by weight of ferrous sulfate powder, 8 parts by weight of cuprous oxide powder, 4 parts by weight of reducing agent and 10000 parts by weight of 8% dilute sulfuric acid solution. Wherein the ferrous sulfate powder and the cuprous oxide powder are analytically pure, and the particle sizes of the ferrous sulfate powder and the cuprous oxide powder are both less than or equal to 0.1 mm.
Further, the reducing agent is a soluble sulfide or sulfite.
In the prior art, there is also a method for breaking complexing agent of organic complex in water by decomposing and oxidizing organic matters in water through a wet digestion method, such as a sulfuric acid-nitric acid digestion method, a hydrogen peroxide-sulfuric acid method, etc., so that the organic matters escape in a gaseous state, but the method has the following defects: firstly, the application of the outdoor rapid detection kit is inconvenient because the treatment such as heating is needed; on the other hand, in the early stage of digestion, a large amount of harmful gas and foam are generated, and in order to prevent the foam from overflowing, the volume of the reaction container needs to be larger, so that the reduction of the volume of the detection kit is inconvenient. What is more troublesome is that in water body, especially in electrolysis and electroplating wastewater, the complex nickel ions are not easy to react with the reagent of the conventional wet digestion method, and are a stable existing form of the nickel ions in water.
Under the weakly acidic environment, cuprous oxide and ferrous sulfate are utilized to generate hydrogen peroxide and hydroxyl radical, then under the combined action of the ferrous sulfate, the hydrogen peroxide and the hydroxyl radical, complexing agent removing treatment is carried out on the complex nickel ions in the water sample to be detected, free nickel ions are released, and then specific color reaction is carried out on the free nickel ions and alkaline solution of oxime compounds to obtain the content of the nickel ions. In the process, operations such as heating and the like are not needed, and the detection packet can simplify the operation in the using process and is convenient to use; and a large amount of harmful gas and foam are not generated in the reaction process, so that a foundation can be provided for reducing the volume of the kit.
In addition, the reducing agent is used to promote the reaction process.
Further, the detection reagent pack B is a mixture containing 0.2-0.3 g/L of dimethylglyoxime, 3-5 g/L of masking agent, 30-50 mL/L of glycol and the balance of ammonia water-ammonium chloride buffer solution.
Wherein the ammonia water-ammonium chloride buffer solution is prepared according to the following method: 16.9g of ammonium chloride is weighed and added into 143mL of ammonia water solution, and the solution is diluted to 250mL by water. Wherein the ammonia water solution is an ammonia water solution with 25% of ammonia content.
Further, the masking agent is one or more of sodium tartrate, sodium acetate, thiourea and disodium ethylenediamine tetraacetate, and the masking agent is added to prevent OH in the detection reagent pack B-With other metal ions, e.g. Cu2+、Fe3+Plasma reaction, substances that affect the detection results.
Further, the detection reagent pack B is configured according to the following method: weighing 0.2-0.3 g of dimethylglyoxime and 3-5 g of masking agent, adding 800-900 mL of the ammonia-ammonium chloride buffer solution, stirring for dissolving, adding 30-50 mL of ethylene glycol, stirring uniformly, and then fixing the volume to 1L by using the ammonia-ammonium chloride buffer solution.
Further, the preparation process of the standard color level C mainly comprises:
(a) preparing a nickel standard solution;
(b) and preparing a standard color scale tube.
Wherein the (a) nickel standard solution is prepared according to the following method:
0.4478g of nickel sulfate hexahydrate is weighed and dissolved in 1L of deionized water to obtain a nickel ion solution with the concentration of 100mg/L, and then the deionized water is used for sequentially diluting the nickel ion solution with the concentration of 100mg/L into nickel ion standard solutions with the concentrations of 0.3mg/L, 0.5mg/L, 1mg/L, 2mg/L, 5mg/L and 10mg/L, so that a series of nickel standard solutions with different concentrations can be obtained for later use.
Further, the (b) process for preparing a standard color scale is as follows:
taking 7 10ml glass tubes, taking the 1 st glass tube as a reference tube, taking the 2 nd to 7 th glass tubes as standard tubes, respectively adding deionized water and the nickel standard solutions with different concentrations into the reference tube and the standard tubes, then reacting with the pretreatment reagent pack A (ferrous sulfate powder and cuprous oxide powder in the pretreatment reagent pack A are equally divided into 3 parts and added into the glass tubes at a speed of 1 part/min within 3 min) for 3-5 min, adding a detection reagent B for reacting for 1-3 min to obtain a series of mixture systems with different color shades, respectively injecting the mixture systems into different color scale tubes, and then sealing the color scale tubes to form a series of non-fading standard color scale tubes, namely the standard color scale C.
Further, as shown in fig. 1 to 9, the total nickel test pack of the present application further includes:
the kit comprises a medicine bag 1, wherein a plurality of bag cavities for respectively containing a pretreatment reagent bag A, a detection reagent B and a standard color scale C are arranged in the medicine bag 1;
the outer shell body is coated on the periphery of the medicine bag 1, and the medicine bag 1 forms a protective shell through the outer shell body.
Further, the medicine bag 1 comprises:
a sampling tube 101, wherein the sampling tube 101 is arranged at the upper end of the first sac cavity 102 in a bendable manner;
a first capsule 102, wherein each component of the pretreatment reagent pack A is stored in the first capsule 102;
a second capsule 103, wherein the detection reagent B is stored in the second capsule 103;
the colorimetric sac cavity 104 is used for storing a mixture system formed by reacting part of water sample to be detected with the pretreatment reagent packet A and the detection reagent B;
a standard color scale pocket 105, said standard color scale pocket 105 having said standard color scale C stored therein.
Through the setting of advance appearance pipe 101, first bag chamber 102, second bag chamber 103 and colorimetric bag chamber 104 will each component and each operation step organic in the total nickel test package combine together, during the use, the user only need pass through advance appearance pipe 101 advance the appearance, later open according to the suggestion in proper order first bag chamber 102 and second bag chamber 103 can, whole operation process need not add any reagent by oneself by the user, and easy and simple to handle, difficult mistake, the test success rate is high.
Furthermore, a plurality of partition lines 1021 are arranged in the first capsule 102, the space in the first capsule 102 is divided into a plurality of sub-chambers 1023 by the partition lines 1021, and each sub-chamber 1023 is used for storing different components in the pretreatment reagent pack A.
Specifically, as shown in fig. 3, the partition line 1021 includes:
a first partition line 1021a extending down to the middle of the first bladder cavity 102 along the upper end of the first bladder cavity 102;
a second partition line 1021b extending downward along an upper end of the first bladder cavity 102 to a middle of the first bladder cavity 102;
a third partition line 1021c extending upward along the lower end of the first bladder cavity 102 to the middle of the first bladder cavity 102;
a fourth partition line 1021d extending upward along the lower end of the first bladder cavity 102 to the middle of the first bladder cavity 102;
dividing an upper space in the first capsule 102 into a first sub-chamber 1023a located at an upper middle region of the first capsule 102 and third and fourth sub-chambers 1023c and 1023d located at both sides of the first sub-chamber 1023a by the first and second partition lines 1021a and 1021 b;
dividing a lower space in the first capsule 102 into a second sub-chamber 1023b located at a lower middle area of the first capsule 102 and fifth and sixth sub-chambers 1023e and 1023f located at both sides of the second sub-chamber 1023b by the third and fourth partition lines 1021c and 1021 d;
ferrous sulfate powder and cuprous oxide powder in the pretreatment reagent pack A are stored in the third sub-chamber 1023c and the fourth sub-chamber 1023d, respectively; the reducing agent in the pretreatment reagent pack a is stored in the second sub-chamber 1023 b; the dilute sulfuric acid solution in the pretreatment reagent pack a is stored in the first sub-chamber 1023 a.
Through the partition line 1021, the space in the first capsule cavity 102 is divided into a plurality of sub-chambers 1023, and through the arrangement of the sub-chambers 1023, separate storage spaces are respectively provided for each component in the pretreatment reagent pack A, so that premature contact and failure caused by each component in the pretreatment reagent pack A before testing are avoided.
As some embodiments of the present application, the first partition line 1021a is located in the upper left region of the first capsule 102, and the third sub-chamber 1023c is separated at the upper left corner of the first capsule 102 by the first partition line 1021 a; the second partition line 1021b is located in the upper right region of the first capsule 102, and the fourth sub-chamber 1023d is separated from the upper right corner of the first capsule 102 by the second partition line 1021 b; the third partition line 1021c is located in the lower left region of the first capsule 102, and the fifth sub-chamber 1023e is separated at the lower left corner of the first capsule 102 by the third partition line 1021 c; the fourth partition line 1021d is located in the lower right region of the first capsule 102, the sixth sub-chamber 1023f is separated from the lower right corner of the first capsule 102 by the fourth partition line 1021d, the first sub-chamber 1023a is separated between the first partition line 1021a and the second partition line 1021b, the second sub-chamber 1023b is separated between the third partition line 1021c and the fourth partition line 1021d, ferrous sulfate powder in the pretreatment reagent pack a is stored in the third sub-chamber 1023c, cuprous oxide powder is stored in the fourth sub-chamber 1023d, reducing agent in the pretreatment reagent pack a is stored in the second sub-chamber 1023b, and dilute sulfuric acid solution in the pretreatment reagent pack a is stored in the first sub-chamber 1023 a.
Preferably, the height of the lower end of the first partition line 1021a is lower than the height of the upper end of the third partition line 1021c, so that the first partition line 1021a and the third partition line 1021c are arranged in a staggered manner; similarly, the height of the lower end of the second partition line 1021b is lower than the height of the upper end of the fourth partition line 1021d, so that the second partition line 1021b and the fourth partition line 1021d are arranged in a staggered manner.
As some embodiments of the present application, when the third partition line 1021c and the fourth partition line 1021d are set to have a height for detection, after a water sample to be detected enters the first capsule 102, the mixture system in the second sub-chamber 1023b can flow over the third partition line 1021c and the fourth partition line 1021 d.
As some embodiments of the present application, there is no requirement for the height setting of the third partition line 1021c and the fourth partition line 1021d, a through hole is provided at the lower end of the third partition line 1021c and the fourth partition line 1021d, and the fifth sub-chamber 1023e, the second sub-chamber 1023b, and the sixth sub-chamber 1023f are communicated through the through hole.
Further, a sealing clamp 1022 is disposed on the first bag cavity 102, the sealing clamp 1022 clamps the intersection of the first partition line 1021a, the second partition line 1021b, the third partition line 1021c and the fourth partition line 1021d, and simultaneously closes the lower ports of the first sub-cavity 1023a, the third sub-cavity 1023c and the fourth sub-cavity 1023d and the upper ports of the second sub-cavity 1023b, the fifth sub-cavity 1023e and the sixth sub-cavity 1023f, so that each sub-cavity 1023 in the first bag cavity 102 can be simultaneously closed or opened by the sealing clamp 1022.
As some examples of the present application, the sealing clip 1022 may be a commercially available sealing clip or the like.
Preferably, the sealing clamp 1022 clamps onto the first capsule 102 in a horizontal direction.
More preferably, with reference to a central axis L of the first capsule 102 in the vertical direction, a distance between the first partition line 1021a and the central axis L is less than a distance between the third partition line 1021c and the central axis L, so that the third partition line 1021c is located on the left side of the first partition line 1021 a; similarly, the distance between the second partition line 1021b and the central axis L is less than the distance between the fourth partition line 1021d and the central axis L, so that the second partition line 1021b is located at the left side of the fourth partition line 1021d, and thus when the sealing clamp 1022 is opened, the ferrous sulfate powder in the third sub-chamber 1023c partially enters the second sub-chamber 1023b and partially enters the fifth sub-chamber 1023e, so that when the total nickel content is detected, the ferrous sulfate powder in the third sub-chamber 1023c cannot be instantly and completely and uniformly merged with other components in the pretreatment reagent pack a; likewise, when the sealing clamp 1022 is opened, the fourth sub-chamberThe cuprous oxide powder part in 1023d directly gets into in the second sub-chamber 1023b, the part gets into in the sixth sub-chamber 1023f, when detecting total nickel content, the cuprous oxide powder in the fourth sub-chamber 1023d can not all in the twinkling of an eye with other components in the preliminary treatment reagent package A join evenly. The benefits of such treatment are: the oxidative decomposition of organic matters is a complex parallel-serial reaction, if the ferrous sulfate powder and the cuprous oxide powder are quickly mixed with other components in the pretreatment reagent packet A and a water sample to be detected at one time, the one-time adding amount of the ferrous sulfate powder and the cuprous oxide powder is easily too large, and the Fe is easily added2+Is oxidized into Fe3+Reagent waste and reaction efficiency reduction are caused; according to the application, through the arrangement of the partition line 1021, part of the ferrous sulfate powder and the cuprous oxide powder can directly enter the second sub-chamber 1023b, so that a large amount of ferrous sulfate powder and cuprous oxide powder can be put in for the first time; afterwards, the ferrous sulfate powder and the cuprous oxide powder stored in the fifth sub-chamber 1023e and the sixth sub-chamber 1023f are slowly merged with other components in the second sub-chamber 1023b through diffusion, so that the ferrous sulfate powder and the cuprous oxide powder are slowly added, the reaction speed can be ensured, the main reaction in the parallel reaction can be promoted to be smoothly carried out, and the degradation of organic nickel is facilitated.
Further, as shown in fig. 2, the second capsule 103 includes:
a reaction chamber 1031, the reaction chamber 1031 being used for performing a color reaction;
a mixing chamber 1032, the mixing chamber 1032 configured to mix the products of the color reaction to improve color uniformity and representativeness of the system entering the color capsule 104.
Specifically, a water sample to be tested enters the first sac 102 through the sample inlet pipe 101, reacts with the pretreatment reagent bag A, enters the reaction chamber 1031, reacts with the detection reagent B stored in the reaction chamber 1031 to perform a color development reaction, fully mixes in the mixing chamber 1032 to enter the colorimetric sac 104, and determines the total nickel content in the water sample to be tested by comparing the color of the system in the colorimetric sac 104 with the color of the system in the standard color gradation sac 105.
Preferably, the ratio of the areas of the cross sections of the reaction chamber 1031 and the mixing chamber 1032 in the horizontal direction is 10:8 to 10: 4; the ratio of the lengths of the reaction chamber 1031 and the mixing chamber 1032 in the vertical direction is 5: 7-5: 10. By optimizing the size ratio of the reaction chamber 1031 and the mixing chamber 1032, the overall size of the total nickel test pack can be reduced on the basis of ensuring the mixing effect of the mixing chamber 1032.
Further, the total nickel test pack further comprises:
the infusion tube 106 is used for sequentially communicating the first sac cavity 102, the second sac cavity 103 and the colorimetric sac cavity 104 through the infusion tube 106;
a thermal fuse 107, wherein the thermal fuse 107 is a destructible thermal fuse arranged on the medicine bag 1, and when the thermal fuse 107 is destroyed, the cavities on both sides of the thermal fuse 107 can be communicated.
Further, the infusion tube 106 includes:
a first infusion tube 106a, both ends of which are respectively communicated with the lower end of the first sac cavity 102 and the upper end of the second sac cavity 103;
and two ends of the second infusion tube 106b are respectively communicated with the lower end of the second sac cavity 103 and the upper end of the colorimetric sac cavity 104.
The first sac cavity 102, the second sac cavity 103 and the colorimetric sac cavity 104 are sequentially communicated through the first infusion tube 106a and the second infusion tube 106 b.
Further, the thermal fuse 107 includes:
a first fusible link 107a provided at one end of the sample introduction tube 101 near the first capsule 102;
a second fusible link 107b provided at an end of the first infusion tube 106a near the first balloon 102;
a third fusible link 107c provided at the intersection of the reaction chamber 1031 and the mixing chamber 1032 in the second capsule 103.
The medicine bag 1 is divided into a plurality of sections which are not communicated with each other through the first hot-melting wire 107a, the second hot-melting wire 107b and the third hot-melting wire 107c, and when the medicine bag is required to be mixed, the cavities on two sides of the medicine bag and the contents of the medicine bag can be mixed by breaking the hot-melting wires 107, so that the medicine bag is convenient to use.
As some embodiments of the present application, the medicine bag 1 is made of plastic, the hot-melt wire 107 is formed by hot-melting, and the hot-melt wire 107 can be formed by heating the medicine bag 1 at the position of the hot-melt wire 107 and bonding the inner walls of the medicine bag 1 together. When the space on both sides of the hot melt wire 107 is pressed with force, the hot melt wire 107 is broken under the pressure, so that the inner walls of the medicine bag 1 are separated from each other and the cavities on both sides of the hot melt wire 107 are communicated.
Further, the sampling tube 101 includes:
the sample injection pipe comprises a pipe body, a sample injection pipe and a sample injection pipe, wherein scales for marking the volume are arranged on the pipe body, and the volume of a water sample to be detected in the sample injection pipe 101 can be read through the scales;
a sample introduction end 1011, which is an end of the sample introduction tube 101 away from the first capsule 102.
Furthermore, the sampling pipe 101 is a bendable pipeline, so that the sampling pipe 101 can be conveniently stored and stored, and the volume of the total nickel test pack is reduced.
Further, as shown in fig. 9, the sample introduction end 1011 is provided with:
a fixing plate 1013 having a semicircular sheet structure, the fixing plate 1013 being fixedly disposed inside the sample introduction end 1011;
the elastic sheet 1012 is of a semicircular sheet structure, and the elastic sheet 1012 is arranged at the inner side of the sample introduction end 1011 in a bendable manner;
the fixing piece 1013 and the elastic piece 1012 are spliced together to form a complete circle, and the circle blocks the inner channel of the sample introduction end 1011.
As some embodiments of the present application, a fold 1014 is disposed between the fixing plate 1013 and the elastic sheet 1012, and by the fold 1014, the elastic sheet 1012 can be easily bent toward the inner side of the sample introduction end 1011 and is difficult to be bent toward the outer side of the sample introduction end 1011.
When the sampling tube 101 is used for sampling, the sampling end 1011 is continuously inserted downwards into a water body to be tested, the elastic sheet 1012 is automatically opened under the action of water pressure, a water sample in the water body to be tested spontaneously enters the sampling tube 101, and the elastic sheet 1012 is kept opened and in a water sample inlet state under continuous upward pressure along with the continuous insertion of the sampling tube 101; after the sampling of the sampling tube 101 is completed, the sampling tube is not continuously inserted downwards into the water body to be detected, the elastic sheet 1012 is not stressed by upward pressure, and the sampling tube is spontaneously closed, so that the water sample in the sampling tube 101 is prevented from flowing out; the tester directly takes out the sampling pipe 101 can accomplish the sampling process, and whole sampling process easy operation, easily realization.
Therefore, when the sampling tube 101 is inserted into a water body for sampling, on one hand, the volume of the sampled water sample and the depth of the sampling tube 101 inserted into the water body can be quickly read out through the scale for marking the volume arranged on the tube body; on the other hand, through the setting of shell fragment 1012 etc. for the water sample of the different degree of depth can be got to the sampling pipe 101, improves the representativeness of sample, reduces the number of times of measurement.
Further, the outer case includes:
a rear case 2, the rear case 2 being composed of a rear bottom plate 201 and a rear side plate 202 surrounding an edge of the rear bottom plate 201;
a front case 3, the front case 3 being composed of a front panel 301 and a front side plate 302 surrounding an edge of the front panel 3011;
the rear housing 2 and front housing 3 are relatively snap-fitted together to define a space for receiving the capsule 1.
Furthermore, the outer shell is further provided with an outlet 203, and the sample inlet 101 extends out of the inner part of the outer shell through the outlet 203.
Furthermore, an operation window 303 is arranged on the front case 3, the operation window 303 is a plurality of hollow parts arranged on the front panel 301, and the first capsule cavity 102, the second capsule cavity 103, the hot melt wire 107 and other components in the medicine capsule 1 are exposed from the operation window 303, so that on one hand, the observation by an operator is facilitated; on the other hand, the inspector can press the relevant area of the capsule 1 through the operating window 303, opening the corresponding thermofusible thread 107.
In addition, the present application also provides a method for preparing the total nickel test pack, which is used for preparing the total nickel test pack, and the method comprises the following steps:
s1, preparing the medicine bag 1 according to the structure of the medicine bag 1 in the total nickel test bag, but temporarily not arranging the partition line 1021, the sealing clip 1022 and the hot-melt line 107, keeping the lower end of the colorimetric bag cavity 104 open, and filling various detection reagents into the medicine bag 1 through the lower end of the colorimetric bag cavity 104;
s2, processing the first fusible link 107a in the sachet 1;
s3, processing the first partition line 1021a, the second partition line 1021b, the third partition line 1021c and the fourth partition line 1021d in the first capsule cavity 102 in the capsule 1;
s4, preparing a pretreatment reagent package A: weighing a certain amount of ferrous sulfate powder, cuprous oxide powder, a reducing agent and an acidic pH regulator according to the proportion, respectively filling the ferrous sulfate powder and the cuprous oxide powder into a third sub-chamber 1023c and a fourth sub-chamber 1023d in the medicine bag 1, and filling the acidic pH regulator into a first sub-chamber 1023a in the medicine bag 1;
s5, clamping the sealing clamp 1022 at the intersection of the first partition line 1021a, the second partition line 1021b, the third partition line 1021c and the fourth partition line 1021d, and sealing the lower ends of the third sub-chamber 1023c, the fourth sub-chamber 1023d and the first sub-chamber 1023a by the sealing clamp 1022; while sealing the upper ends of the second sub-chamber 1023b, fifth sub-chamber 1023e and sixth sub-chamber 1023 f;
s6, filling the reducing agent in the pretreatment reagent pack a into the second sub-chamber 1023b in the sachet 1;
s7, disposing the second fusible link 107b on the medicine bag 1;
s8, preparing a detection reagent package B: weighing 0.2-0.3 g of dimethylglyoxime and 3-5 g of masking agent, adding 800-900 mL of the ammonia-ammonium chloride buffer solution, stirring for dissolving, then adding 30-50 mL of ethylene glycol, stirring uniformly, and then fixing the volume to 1L by using the ammonia-ammonium chloride buffer solution;
s9, filling a proper amount of the detection reagent pack B prepared in the step S8 into the reaction chamber 1031 in the second capsule chamber 103;
s10, disposing the third thermal fuse 107C on the sachet 1;
s11, closing the lower port of the colorimetric capsule 104.
Further, the method for preparing the total nickel test pack further comprises the following steps:
and S12, respectively injecting the colored systems in the standard color scale tubes into the standard color scale sac cavities 105 to form the standard color scale C.
Preferably, in the vicinity of the standard color level C, as the front case 3, a content mark of nickel is marked.
Preferably, in the process of injecting the reagents into the medicine bag 1, a conveying pipeline is adopted to convey each detection reagent to a region to be stored, so that the detection reagent is prevented from polluting other regions.
As some embodiments herein, the pretreatment reagent package a of the total nickel test package comprises: 0.05-0.5 mg of ferrous sulfate powder, cuprous oxide powder, a reducing agent and a dilute sulfuric acid solution in corresponding proportion; the detection reagent pack B in the total nickel test pack contains 0.1-1 ml of alkaline solution of oxime compounds, and correspondingly, the volume of a water sample to be detected is 1-10 ml. With the increase of the volume of the water sample to be detected, the dosage of the pretreatment reagent pack A and the dosage of the detection reagent pack B are properly increased.
As some embodiments herein, the pretreatment reagent package a of the total nickel test package comprises: 0.5mg ferrous sulfate powder, 0.25mg cuprous oxide powder, 0.2mg reducing agent, and 1ml dilute sulfuric acid solution; the detection reagent pack B in the total nickel test pack contains 1ml of alkaline solution of oxime compounds, and the volume of a water sample to be detected is 10 ml.
Furthermore, the present application also provides a method for detecting a total nickel test package, where the method is used for the total nickel test package, and the method includes the steps of:
t1, taking out the sample injection pipe 101, straightening, inverting the total nickel test pack, and continuously inserting the sample injection pipe 101 downwards into a water body to be tested;
t2, stopping sampling when the volume of the water sample to be detected in the sampling pipe 101 reaches the sampling volume, such as 10ml, and taking the sampling pipe 101 out of the water body to be detected;
t3, placing the total nickel test pack upright, that is, placing the sample inlet pipe 101 upward, so that the sample to be tested in the sample inlet pipe 101 is located at the lower part of the sample inlet pipe 101, then pinching the upper end opening of the sample inlet pipe 101 with a hand to close the opening, and simultaneously pressing the first fusible link 107a at the lower part of the sample inlet pipe 101 with force, so as to open the first fusible link 107a, so that the sample to be tested in the sample inlet pipe 101 is mixed with the dilute sulfuric acid solution in the first sub-chamber 1023 a;
t4, under illumination, opening the sealing clamp 1022 on the first capsule 102, so that the sub-chambers 1023 in the first capsule 102 are communicated with each other, the water sample to be tested in the first sub-chamber 1023a enters the second sub-chamber 1023b with dilute sulfuric acid solution, and is mixed with the reducing agent in the second sub-chamber 1023b, part of ferrous sulfate powder falling from the third sub-chamber 1023c, and part of cuprous oxide powder falling from the fourth sub-chamber 1023d, and the water sample to be tested is subjected to a decomplexing agent treatment, so that the nickel ions in a complexed state in the water sample to be tested are oxidized and decomposed, and free nickel ions are released; meanwhile, part of the mixture solution in the second sub-chamber 1023b can flow through the third partition line 1021c and the fourth partition line 1021d into the fifth sub-chamber 1023e and the sixth sub-chamber 1023f, or enter the fifth sub-chamber 1023e and the sixth sub-chamber 1023f through the through holes at the lower part of the third partition line 1021c and the fourth partition line 1021d, and ferrous sulfate powder and cuprous oxide powder in the fifth sub-chamber 1023e and the sixth sub-chamber 1023f are continuously conveyed into the second sub-chamber 1023b through diffusion, so that the reaction is continuously carried out;
t5, pinching the upper end opening of the sampling tube 101 with a hand to close it, and at the same time, forcibly squeezing the second hot melt wire 107b to open the second hot melt wire 107b, so that the first capsule 102 communicates with the second capsule 103, and the first capsule 102 and the detection reagent in the second capsule 103 are mixed to perform a color reaction;
t6, pinching the upper end opening of the sample inlet tube 101 by hand to close it, and simultaneously pressing the third hot melt wire 107c with force to open the third hot melt wire 107c, so that the second capsule 103 is communicated with the colorimetric capsule 104, and the mixture system in the second capsule 103 enters the colorimetric capsule 104;
t7, comparing the colors of the systems in the colorimetric capsule cavity 104 and the standard color scale capsule cavity 105, and recording the content of nickel in the standard color scale capsule cavity 105 closest to the color of the colorimetric capsule cavity 104 as the total nickel content in the water sample to be detected; if the color of the colorimetric capsule cavity 104 is between the two adjacent standard color-scale capsule cavities 105, recording the average value of the nickel content in the two adjacent standard color-scale capsule cavities 105 as the total nickel content in the water sample to be detected.
Further, the method for detecting the total nickel test pack further comprises the following steps:
and T8, after the detection is finished, the sampling tube 101 is sealed in a knotting mode and is thrown into a corresponding garbage recycling position, so that pollution caused by random discarding of a mixture system in the total nickel test pack is avoided, and meanwhile, the garbage recycling treatment is convenient to detect.
As some embodiments of the present application, the upper end of the sample tube 101 may be directly sealed by knotting after the step T4 is completed, and in the following operation, the upper end opening of the sample tube 101 does not need to be pinched and closed by hands.
As some embodiments of the present application, during the detection process, the detection person may extend a finger into the outer shell through the operation window 303 and press the corresponding region.
Further, in the step T4, after the sealing clip 1022 is opened, the first capsule cavity 102 is placed under light, and is left to stand and react for 3-5 min, and then the step T5 is performed.
Further, in the step T5, after the first capsule cavity 102 and the second capsule cavity 103 are communicated, the total nickel test pack may be left standing for 1-3 min to fully react, and then the step T6 is performed.
Further, an operation instruction sign is provided on the front case 3; and indicating the correct operation of the detection personnel through the operation indication mark.
Example 1
T1, taking out the sample inlet pipe 101, straightening, inverting the total nickel test pack, and continuously inserting the sample inlet pipe 101 downwards into a No. 2 sewage discharge port of a certain electroplating plant in Ningbo city for sampling;
t2, stopping sampling when the volume of the water sample to be detected in the sampling pipe 101 reaches 10ml, and taking out the sampling pipe 101 from the water body to be detected;
t3, aligning the total nickel test pack to allow the sample to be tested in the sample inlet pipe 101 to flow to the lower part of the sample inlet pipe 101, then pinching the upper end opening of the sample inlet pipe 101 with a hand to seal it, and simultaneously squeezing the first fusible link 107a at the lower part of the sample inlet pipe 101 with force to open the first fusible link 107a, so that the sample to be tested in the sample inlet pipe 101 is mixed with the dilute sulfuric acid solution in the first sub-chamber 1023 a;
t4, under natural illumination, opening the sealing clamp 1022 on the first capsule 102, so that the sub-chambers 1023 in the first capsule 102 are communicated with each other, the water sample to be tested in the first sub-chamber 1023a enters the second sub-chamber 1023b with dilute sulfuric acid solution, and is mixed with the reducing agent in the second sub-chamber 1023b, part of ferrous sulfate powder falling from the third sub-chamber 1023c, and part of cuprous oxide powder falling from the fourth sub-chamber 1023d, and the water sample to be tested is subjected to a complexing agent removing treatment, so that the nickel ions in a complex state in the water sample to be tested are oxidized and decomposed, and free nickel ions are released; meanwhile, part of the mixture solution in the second sub-chamber 1023b enters the fifth sub-chamber 1023e and the sixth sub-chamber 1023f through the through holes at the lower parts of the third partition line 1021c and the fourth partition line 1021d, and the ferrous sulfate powder and the cuprous oxide powder in the fifth sub-chamber 1023e and the sixth sub-chamber 1023f are continuously conveyed into the second sub-chamber 1023b through diffusion, and the reaction is maintained for 5 min; wherein the pretreatment reagent package A in the total nickel test package comprises: 0.5mg ferrous sulfate powder, 0.25mg cuprous oxide powder, 0.2mg reducing agent, and 1ml dilute sulfuric acid solution;
t5, pinching the upper end opening of the sampling tube 101 with a hand to close the same, and simultaneously squeezing the second hot melt wire 107B with force to open the second hot melt wire 107B, so that the first capsule 102 is communicated with the second capsule 103, and the first capsule 102 is mixed with the detection reagent pack B in the second capsule 103 to perform a color reaction for 3 min; the detection reagent pack B in the total nickel test pack contains 1ml of alkaline solution of oxime compounds;
t6, pinching the upper end opening of the sample inlet tube 101 by hand to close it, and simultaneously pressing the third hot melt wire 107c with force to open the third hot melt wire 107c, so that the second capsule 103 is communicated with the colorimetric capsule 104, and the mixture system in the second capsule 103 enters the colorimetric capsule 104;
and T7, comparing the colors of the systems in the colorimetric sac cavity 104 and the standard color scale sac cavity 105 to obtain that the total nickel content in the water sample to be detected is 2 mg/L.
Example 2
Taking 10ml of the water sample of the No. 3 sewage discharge port of the electroplating plant described in the embodiment 1, and detecting according to the same detection method as the embodiment 1 to obtain the total nickel content in the water sample to be detected, wherein the total nickel content is 0.4 mg/L.
According to inspection, the No. 2 sewage discharge port of the electroplating plant is sewage before treatment, the No. 3 sewage discharge port is sewage after primary sewage treatment (flocculation and sedimentation) and secondary sewage treatment (chemical treatment), and detection shows that after the secondary sewage treatment, the total nickel content in the sewage is 0.4mg/L, so that the sewage discharge standard of the electroplating plant is met.
Example 3
20ml of municipal tap water at the tail end of the municipal domestic water is divided into two parts, and one part is detected according to the detection method in the example 1, and the solution is nearly colorless after color reaction, which indicates that the total nickel content in the water sample is less than 0.3 mg/L.
Thereafter, another water sample was subjected to the labeling test: adding 2mg/L of nickel ion standard solution 10mL in the preparation process of the standard color gradation C into the water sample to obtain 20mL of mixed water sample, equally dividing the water sample into 2 parts, detecting one part of the mixed water sample again according to the detection method in the embodiment 1 to obtain that the total nickel content in the water sample is 1mg/L, and detecting the other part of the mixed water sample according to the dimethylglyoxime spectrophotometry method required by GB11910-89 to obtain that the total nickel content in the water sample is 1.07mg/L, which shows that the method provided by the invention can realize the rapid visual detection of the total nickel content in the water.
Although the present invention is disclosed above, the present invention is not limited thereto. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A total nickel test pack, comprising:
the pretreatment reagent pack A comprises ferrous sulfate powder, cuprous oxide powder, a reducing agent and an acidic pH regulator;
a detection reagent pack B, wherein the detection reagent pack B is an alkaline solution of oxime compounds;
and the standard color level C is a system obtained by reacting nickel standard solutions with different concentrations with the detection reagent packs A and B in sequence.
2. The total nickel test pack according to claim 1, wherein the pretreatment reagent pack A comprises, by weight, 10 to 30 parts of ferrous sulfate powder, 5 to 12 parts of cuprous oxide powder, 3 to 5 parts of a reducing agent, and 8000 to 20000 parts of a dilute sulfuric acid solution having a concentration of 8%.
3. The total nickel test kit according to claim 1, wherein the detection reagent kit B is a mixture containing 0.2-0.3 g/L of dimethylglyoxime, 3-5 g/L of masking agent, 30-50 mL/L of glycol, and the balance of ammonia-ammonium chloride buffer solution.
4. The total nickel test package of claim 1, further comprising:
the kit comprises a medicine bag (1), wherein a plurality of bag cavities for respectively containing a pretreatment reagent bag A, a detection reagent B and a standard color level C are arranged in the medicine bag (1);
the outer shell is coated on the periphery of the medicine bag (1).
5. Total nickel test pack according to claim 4, characterized in that the sachet (1) comprises, in succession and in communication:
the sampling tube (101), the sampling tube (101) is arranged at the upper end of the first sac cavity (102) in a bendable manner;
a first capsule (102), said first capsule (102) having said pretreatment reagent pack A stored therein;
a second capsule (103), wherein the detection reagent B is stored in the second capsule (103);
the colorimetric capsule cavity (104) is used for storing a mixture system formed by reacting part of a water sample to be detected with the pretreatment reagent bag A and the detection reagent B;
a standard color scale pocket (105), the standard color scale C being stored within the standard color scale pocket (105).
6. The total nickel test pack according to claim 5, wherein a plurality of partition lines (1021) are provided in the first capsule (102), and the space in the first capsule (102) is divided into a plurality of sub-chambers (1023) by the partition lines (1021), each sub-chamber (1023) being used for storing a different component in the pretreatment reagent pack A.
7. The total nickel test pack according to claim 6, wherein the partition line (1021) comprises: a first partition line (1021a), a second partition line (1021b), a third partition line (1021c), and a fourth partition line (1021 d);
the first and second partition lines (1021a, 1021b) divide an upper space within the first capsule cavity (102) into a first sub-chamber (1023a) located at an upper side middle region of the first capsule cavity (102) and third and fourth sub-chambers (1023c, 1023d) located at both sides of the first sub-chamber (1023 a);
the third partition line (1021c) and the fourth partition line (1021d) divide a lower space in the first capsule cavity (102) into a second sub-chamber (1023b) located in a lower side middle region of the first capsule cavity (102) and fifth sub-chambers (1023e) and sixth sub-chambers (1023f) located at both sides of the second sub-chamber (1023 b);
the ferrous sulfate powder and the cuprous oxide powder in the pretreatment reagent pack A are stored in the third sub-chamber (1023c) and the fourth sub-chamber (1023d), respectively; the reducing agent in the pretreatment reagent pack A is stored within the second sub-chamber (1023 b); the dilute sulfuric acid solution in the pretreatment reagent pack A is stored in the first sub-chamber (1023 a).
8. The total nickel test pack according to claim 7, wherein the lower end of the first partition line (1021a) is at a lower height than the upper end of the third partition line (1021c), the lower end of the second partition line (1021b) is located at a height lower than the upper end of the fourth partition line (1021d), set up sealing clip (1022) on first bag chamber (102), sealing clip (1022) centre gripping is in the crossing of first disconnected line (1021a), second disconnected line (1021b), third disconnected line (1021c) and fourth disconnected line (1021d), will first subchamber (1023a), third subchamber (1023c) and fourth subchamber (1023d) the lower port and second subchamber (1023b), fifth subchamber (1023e) and the upper port of sixth subchamber (1023f) close simultaneously.
9. The total nickel test package of claim 5, further comprising:
the first sac cavity (102), the second sac cavity (103) and the colorimetric sac cavity (104) are sequentially communicated through the infusion tube (106);
the hot melting wire (107), the hot melting wire (107) is a destructible hot melting wire arranged on the medicine bag (1), and when the hot melting wire (107) is destroyed, the cavities on two sides of the hot melting wire (107) are communicated;
the fusible link (107) comprises a first fusible link (107a) arranged between the sample inlet pipe (101) and the first capsule cavity (102), a second fusible link (107b) arranged between the first capsule cavity (102) and the second capsule cavity (103), and a third fusible link (107c) arranged at the junction of the reaction chamber (1031) and the mixing chamber (1032) in the second capsule cavity (103).
10. A method for preparing a total nickel test pack according to any one of claims 1 to 9, comprising the steps of:
s1, preparing a medicine sac;
s2, processing a first hot melt wire in the medicine bag;
s3, processing a separation line in the first capsule cavity in the medicine capsule;
s4, preparing a pretreatment reagent bag A, and respectively filling ferrous sulfate powder, cuprous oxide powder and an acidic pH regulator in the pretreatment reagent bag A into the specified sub-chambers;
s5, clamping the sealing clip at the staggered position of the separation lines;
s6, filling the reducing agent in the pretreatment reagent bag A into a designated sub-chamber;
s7, processing a second hot melt line on the medicine bag;
s8, preparing a detection reagent pack B;
s9, filling a proper amount of the detection reagent bag B prepared in the step S8 into a reaction cavity in the second capsule cavity;
s10, processing a third hot melt wire on the medicine bag;
and S11, sealing the lower port of the colorimetric sac cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111324732.2A CN114062355B (en) | 2021-11-10 | 2021-11-10 | Total nickel test pack and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111324732.2A CN114062355B (en) | 2021-11-10 | 2021-11-10 | Total nickel test pack and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114062355A true CN114062355A (en) | 2022-02-18 |
| CN114062355B CN114062355B (en) | 2022-08-16 |
Family
ID=80274581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111324732.2A Active CN114062355B (en) | 2021-11-10 | 2021-11-10 | Total nickel test pack and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114062355B (en) |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3476515A (en) * | 1966-04-26 | 1969-11-04 | Du Pont | Analytical test pack and process for analysis |
| US4243326A (en) * | 1979-10-04 | 1981-01-06 | The United States Of America As Represented By The Secretary Of The Army | Nickel analysis device |
| US4500324A (en) * | 1983-06-27 | 1985-02-19 | Texaco Inc. | Method of reducing the nickel content in waste water |
| CN1766552A (en) * | 2005-10-31 | 2006-05-03 | 白莉 | Nickel determination solution and colorimetric determination tube therefor |
| US20070251838A1 (en) * | 2003-12-02 | 2007-11-01 | Fuso Pharmaceutical Industries, Ltd | Multi-Chamber Container |
| CN101139130A (en) * | 2007-08-24 | 2008-03-12 | 华中师范大学 | Method for preparing continuous long-acting and oxydol-free Fenton agent |
| JP2009228030A (en) * | 2008-03-19 | 2009-10-08 | Toda Kogyo Corp | Method for recovering residual nickel in electroless plating waste solution |
| US20100087007A1 (en) * | 2006-11-28 | 2010-04-08 | Nomura Micro Science Co. Ltd | Method for quantitative determination of nickel and/or copper and equipment to be used in the method |
| CN103969259A (en) * | 2014-05-27 | 2014-08-06 | 赣州中联环保科技开发有限公司 | Method for detecting nickel ions in electroplating wastewater subjected to primary pretreatment |
| CN104086022A (en) * | 2014-06-27 | 2014-10-08 | 华南理工大学 | Treatment method of nickel-containing wastewater |
| CN105987908A (en) * | 2015-03-04 | 2016-10-05 | 温州医科大学 | Detection kit for on-site quick detection of nickel ions in water and preparing method |
| CN106749152A (en) * | 2016-12-29 | 2017-05-31 | 济南大学 | The method and its kit of nickel ion in detection sample |
| CN206876566U (en) * | 2017-06-21 | 2018-01-12 | 佛山科学技术学院 | A kind of water body bivalent nickel ion device for fast detecting |
| JP2018043234A (en) * | 2016-09-08 | 2018-03-22 | 東ソー株式会社 | Purification agent for nickel-containing aqueous solution, and method of purifying nickel-containing aqueous solution |
| CN208060370U (en) * | 2018-03-14 | 2018-11-06 | 沈阳圣泰环保科技有限公司 | Total nickel water quality on-line checking analyzer |
| CN109142664A (en) * | 2018-08-27 | 2019-01-04 | 安徽寒锐新材料有限公司 | The detection method of nickel element content in a kind of high iron-containing dilval |
| CN111675393A (en) * | 2020-06-29 | 2020-09-18 | 厦门市韩江环保科技有限公司 | Method for treating and recycling nickel-containing wastewater |
-
2021
- 2021-11-10 CN CN202111324732.2A patent/CN114062355B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3476515A (en) * | 1966-04-26 | 1969-11-04 | Du Pont | Analytical test pack and process for analysis |
| US4243326A (en) * | 1979-10-04 | 1981-01-06 | The United States Of America As Represented By The Secretary Of The Army | Nickel analysis device |
| US4500324A (en) * | 1983-06-27 | 1985-02-19 | Texaco Inc. | Method of reducing the nickel content in waste water |
| US20070251838A1 (en) * | 2003-12-02 | 2007-11-01 | Fuso Pharmaceutical Industries, Ltd | Multi-Chamber Container |
| CN1766552A (en) * | 2005-10-31 | 2006-05-03 | 白莉 | Nickel determination solution and colorimetric determination tube therefor |
| US20100087007A1 (en) * | 2006-11-28 | 2010-04-08 | Nomura Micro Science Co. Ltd | Method for quantitative determination of nickel and/or copper and equipment to be used in the method |
| CN101139130A (en) * | 2007-08-24 | 2008-03-12 | 华中师范大学 | Method for preparing continuous long-acting and oxydol-free Fenton agent |
| JP2009228030A (en) * | 2008-03-19 | 2009-10-08 | Toda Kogyo Corp | Method for recovering residual nickel in electroless plating waste solution |
| CN103969259A (en) * | 2014-05-27 | 2014-08-06 | 赣州中联环保科技开发有限公司 | Method for detecting nickel ions in electroplating wastewater subjected to primary pretreatment |
| CN104086022A (en) * | 2014-06-27 | 2014-10-08 | 华南理工大学 | Treatment method of nickel-containing wastewater |
| CN105987908A (en) * | 2015-03-04 | 2016-10-05 | 温州医科大学 | Detection kit for on-site quick detection of nickel ions in water and preparing method |
| JP2018043234A (en) * | 2016-09-08 | 2018-03-22 | 東ソー株式会社 | Purification agent for nickel-containing aqueous solution, and method of purifying nickel-containing aqueous solution |
| CN106749152A (en) * | 2016-12-29 | 2017-05-31 | 济南大学 | The method and its kit of nickel ion in detection sample |
| CN206876566U (en) * | 2017-06-21 | 2018-01-12 | 佛山科学技术学院 | A kind of water body bivalent nickel ion device for fast detecting |
| CN208060370U (en) * | 2018-03-14 | 2018-11-06 | 沈阳圣泰环保科技有限公司 | Total nickel water quality on-line checking analyzer |
| CN109142664A (en) * | 2018-08-27 | 2019-01-04 | 安徽寒锐新材料有限公司 | The detection method of nickel element content in a kind of high iron-containing dilval |
| CN111675393A (en) * | 2020-06-29 | 2020-09-18 | 厦门市韩江环保科技有限公司 | Method for treating and recycling nickel-containing wastewater |
Non-Patent Citations (1)
| Title |
|---|
| 周安东 等: "Fenton法处理退镀镍漂洗的含镍络废水", 《电子技术》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114062355B (en) | 2022-08-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES340438A1 (en) | Chemical constituent sampler | |
| CN100449307C (en) | Method for investigating carbonate in gypsum and its device | |
| CN107290553B (en) | Dissolvable sulfide analysis method in a kind of water sample | |
| US6139801A (en) | Gas collecting apparatus | |
| CN114062355B (en) | Total nickel test pack and preparation method thereof | |
| CN108267557A (en) | It is analyzed using the COD/TOC of ferrate oxidation method | |
| CN211825892U (en) | Simple separation device for SO2 and CO2 mixed gas | |
| CN111189963A (en) | For SO2And CO2Simple separation device and detection method for mixed gas | |
| CN209878390U (en) | Sampling device for sewage detection | |
| CN107328769A (en) | Calcium, magnesium quick detection kit and its detection method in a kind of blood dialysis solution | |
| CN204807439U (en) | Be applicable to and water funkly be afraid of that oxygen compound carries out ultraviolet cell for fluorescence detection | |
| CN100498289C (en) | Cadmium determination solution and colorimetric determination tube therefor | |
| CN206649802U (en) | A kind of all-in-one micro experimental provision for being used to examine sulfur dioxide property | |
| CN207798644U (en) | Multi-project combined reagent cup set | |
| CN1766554B (en) | Mercury determination solution and colorimetric determination tube therefor | |
| CN216525459U (en) | Portable detection device for detecting formaldehyde content in air | |
| CN215495621U (en) | Miniature experimental device for preparation and properties of ammonia gas | |
| CN205984067U (en) | Experimental device for inspection sulfur dioxide nature | |
| CN100535639C (en) | Available chlorine determination solution and colorimetric determination tube therefor | |
| CN214011064U (en) | Measuring device for ammonia in air | |
| CN104502341B (en) | A kind of butyl xanthic acid quick detection kit and its detection method | |
| CN208679102U (en) | It is a kind of to prepare gas-saturated solutions device | |
| CN202649208U (en) | On-site high-sensitivity immunoassay kit | |
| CN2884184Y (en) | Colorimetric estimation tube for cadmium | |
| CN217416674U (en) | Immunochromatography kit for fluorescence quantitative detection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |