CN107764818A - A kind of method for detecting content of beary metal - Google Patents
A kind of method for detecting content of beary metal Download PDFInfo
- Publication number
- CN107764818A CN107764818A CN201710988676.XA CN201710988676A CN107764818A CN 107764818 A CN107764818 A CN 107764818A CN 201710988676 A CN201710988676 A CN 201710988676A CN 107764818 A CN107764818 A CN 107764818A
- Authority
- CN
- China
- Prior art keywords
- prepare liquid
- beary metal
- detecting content
- acid solution
- test paper
- 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.)
- Pending
Links
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
- G01N21/75—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
-
- 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
- G01N2021/7756—Sensor type
- G01N2021/7759—Dipstick; Test strip
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Plasma & Fusion (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The present invention provides a kind of method for detecting content of beary metal, belongs to metal ion detection technical field.It the described method comprises the following steps：(1) prepare liquid is prepared：By heavy metal sample preparation to be measured into the aqueous solution, acid solution and liquor kalii iodide are added, obtains prepare liquid；(2) prepare liquid detects：Prepare liquid is pipetted, is added dropwise on test paper and develops the color 50~100 seconds, contain dyestuff in the test paper；(3) testing result judges：Colour developing test paper is visually compared with colorimetric card, determines heavy metal concentration.The present invention can partly solve heavy metal detection method, and can reach the effect of quick detection, improve detection efficiency, be also convenient for field operation.
Description
【Technical field】
The invention belongs to metal ion detection technical field, and in particular to a kind of method for detecting content of beary metal.
【Background technology】
Relative density on physics meaning is in more than 4.5g/cm3 metal, referred to as heavy metal.Atomic number is from 23 (V)
Native metal member to 92 (U) is known as 60 kinds, wherein 54 kinds of relative density is both greater than 4.5g/cm3, therefore from relative density
Said in meaning, this 54 kinds of metals are all heavy metals.But when carrying out elementary analysis, wherein some belongs to rare earth metal, have
Refractory metal is incorporated into, the element for being finally industrially really included in heavy metal is：Copper, lead, zinc, tin, nickel, cobalt, antimony, mercury, cadmium
And bismuth, this 10 kinds of metals are widely used in modern industry, in addition to being more than 5 with metal general character and density, physically simultaneously
Without other special general character, but numerous studies confirm that heavy metal has very strong bio-toxicity, Long Term Contact, to human body both at home and abroad
Cause to seriously endanger.
At present, still based on large-sized analytic instrument, the detection method of current all heavy metals can be divided into heavy metal analysis
Spectral colorimetry and the class of electrode method two, spectral colorimetry are sample treatment difference, have been utilized respectively the original of different spectral coverage
Sub-light is composed and molecular spectrum.Have been reported that some inspections also occurs in the market successively for the colorimetric detection method of individual metal recently
Instrument is surveyed, but without the qualitative and quantitative detection that a kind of detection method can accurately accomplish to carry out the heavy metal in environment.
【The content of the invention】
The goal of the invention of the present invention is：For above-mentioned problem, a kind of detection heavy metal provided by the invention contains
The method of amount or the heavy metal detection method that at least can partly solve the above problems, and the effect of quick detection can be reached,
Detection efficiency is improved, is also convenient for field operation.
To achieve these goals, the technical solution adopted by the present invention is as follows：
A kind of method for detecting content of beary metal of the present invention, the described method comprises the following steps：(1) prepare liquid is prepared：Will
Heavy metal sample preparation to be measured adds acid solution and liquor kalii iodide, obtains prepare liquid into the aqueous solution；(2) prepare liquid detects：Move
Prepare liquid is taken, is added dropwise on test paper and develops the color 50~100 seconds, contain dyestuff in the test paper；(3) testing result judges：Will colour developing
Test paper is visually compared with colorimetric card, determines heavy metal concentration.
Alternatively, the method according to the invention, masking agent solution and ascorbic acid solution are additionally added when prepare liquid is prepared,
Wherein, added in 4~6 parts of testing sample solutions 0.5~0.9 part of acid solution, 0.5~2.5 part of screening agent, 0.4~0.9 part it is anti-
Bad hematic acid solution and 1.0~3.0 parts of liquor kalii iodides and add water constant volume after shake up, obtain prepare liquid.
Alternatively, the method according to the invention, the acid solution be chloroazotic acid, 2.5~3mol/L salpeter solution or 2.5~
4mol/L hydrochloric acid solutions.
Alternatively, the method according to the invention, the dyestuff are acid dyes, acidity containing mordant dye or and cation dye
Material.
Alternatively, the method according to the invention, the screening agent are dimercaprol dimercaptopropanol, TGA, dimercaptopropane sulphonate
The citric acid solution of sodium.
Alternatively, the method according to the invention, quantitative filter paper is put into the second of triarylmethane class alkaline cationic dye
In alcohol solution；By the aqueous solution for being put into filter paper in 25~28 degree of constant temperature oscillations 40~60 minutes；By the constant temperature oscillation
Filter paper afterwards, which takes out, to be dried.
Alternatively, the method according to the invention, the heavy metal are lead；
Alternatively, the method according to the invention, the mass concentration of the alkaline crystal violet is 600~800ppm.
Alternatively, the method according to the invention, the dye of positive ion are diaryl alkanes alkaline cationic dye or three
Aryl alkanes alkaline cationic dye, and triaryl alkanes alkaline cationic dye is alkaline crystal violet.
Alternatively, the method according to the invention, ethanol content is 8~10% in the ethanol water.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：According to a kind of detection of the invention
The method of content of beary metal, the content of beary metal of (such as sewage, sludge and cosmetics) can be gone out in environment with quick detection.Especially
Detected using the test paper heavy metal lead containing alkaline crystal violet, the sensitiveest, color developing effect is optimal, and can be exactly
Detect the content of lead ion in environment.Using 0.1~5% dimercaprol dimercaptopropanol, the lemon of solution and DMPS
Acid solution is with 3:The mixed liquor that 1 volume ratio is formulated can more effectively shelter other huge sum of moneys in addition to lead as screening agent
Belong to element, eliminate interference, can more accurately measure the concentration and content of heavy metal lead.Wherein, dimercaprol dimercaptopropanol is in acid bar
Shelter cadmium (II), lead (II), copper (II), mercury (II), tin (II) and zinc (II) plasma under part, citric acid can shelter Fe (III),
Al (III), Ni (II) plasma；Below 100mg/L Fe (III), Co (II), Cu (II), Sn (II), Zn (II), Ni (II) and
Al (III) plasma does not disturb the measure of lead ion；Below 5mg/L Cd (II) and Hg (II) do not disturb the measure of lead ion；
Other common not metal ion such as K with I- complexings+、Na+、Ca2+、Mg2+、NH4+And anion such as Cl-、NO3-Deng not influenceing lead
The measure of ion.In addition, the method according to the invention, it is not necessary to pre-process, easy to operate simple and fast, save to sample
Cost, the operating efficiency of detection is effectively improved, be adapted to detection work during field work.
【Embodiment】
Below by way of the mode of specific embodiment, the present invention is further described.
Embodiment 1
A kind of method for detecting content of beary metal of the present invention, the described method comprises the following steps：(1) prepare liquid is prepared：Will
Heavy metal sample preparation to be measured adds chloroazotic acid and liquor kalii iodide, obtains prepare liquid into the aqueous solution；(2) prepare liquid detects：Pipette
Prepare liquid, it is added dropwise on test paper and develops the color 50 seconds, diaryl alkanes alkaline cationic dye is contained in the test paper；(3) detection knot
Fruit judges：Colour developing test paper is visually compared with colorimetric card, determines lead concentration.
The method according to the invention, also add the citric acid solution of dimercaprol dimercaptopropanol and ascorbic acid molten when prepare liquid is prepared
Liquid, wherein, added in 4 parts of testing sample solutions 0.5 part of acid solution, the citric acid solution of 0.5 part of dimercaprol dimercaptopropanol, 0.4 part
Ascorbic acid solution and 1.0 parts of liquor kalii iodides and add water constant volume after shake up, obtain prepare liquid.
The method according to the invention, quantitative filter paper is put into the ethanol water of triarylmethane class alkaline cationic dye
In；By the aqueous solution for being put into filter paper in 25 degree of constant temperature oscillations 40 minutes；Filter paper after the constant temperature oscillation is taken out and dried.
Wherein, ethanol content is 8% in ethanol water.
Embodiment 2
A kind of method for detecting content of beary metal of the present invention, the described method comprises the following steps：(1) prepare liquid is prepared：Will
Heavy metal sample preparation to be measured adds 2.5mol/L salpeter solution and liquor kalii iodide, obtains prepare liquid into the aqueous solution；(2)
Prepare liquid detects：Prepare liquid is pipetted, is added dropwise on test paper and develops the color 80 seconds, contain acid dyes in the test paper；(3) testing result
Judge：Colour developing test paper is visually compared with colorimetric card, determines lead concentration.
The method according to the invention, the citric acid solution of DMPS and anti-bad is additionally added when prepare liquid is prepared
Hematic acid solution, wherein, added in 5 parts of testing sample solutions 0.7 part of acid solution, 1.5 parts of TGAs citric acid solution,
0.6 part of ascorbic acid solution and 2.0 parts of liquor kalii iodides and add water constant volume after shake up, obtain prepare liquid.
The method according to the invention, quantitative filter paper is put into the ethanol water of triarylmethane class alkaline cationic dye
In；By the aqueous solution for being put into filter paper in 26 degree of constant temperature oscillations 50 minutes；Filter paper after the constant temperature oscillation is taken out and dried.
Wherein, ethanol content is 9% in ethanol water.
Embodiment 3
A kind of method for detecting content of beary metal of the present invention, the described method comprises the following steps：(1) prepare liquid is prepared：Will
Heavy metal sample preparation to be measured adds 4mol/L hydrochloric acid solutions and liquor kalii iodide, obtains prepare liquid into the aqueous solution；(2) it is to be measured
Liquid detects：Prepare liquid is pipetted, is added dropwise on test paper and develops the color 100 seconds, contains mordant dye containing acidity in the test paper；(3) detection knot
Fruit judges：Colour developing test paper is visually compared with colorimetric card, determines lead concentration.
Alternatively, the method according to the invention, the citric acid that DMPS is additionally added when prepare liquid is prepared are molten
Liquid and ascorbic acid solution, wherein, 0.9 part of acid solution, 2.5 parts of DMPSs are added in 6 parts of testing sample solutions
Citric acid solution, 0.9 part of ascorbic acid solution and 3.0 parts of liquor kalii iodides and add water constant volume after shake up, obtain prepare liquid.
The method according to the invention, quantitative filter paper is put into the ethanol water of triarylmethane class alkaline cationic dye
In；By the aqueous solution for being put into filter paper in 28 degree of constant temperature oscillations 60 minutes；Filter paper after the constant temperature oscillation is taken out and dried.
Wherein, ethanol content is 10% in ethanol water.
Embodiment 4
Other are same as Example 1, and wherein dyestuff is and the dye of positive ion, and is contaminated for diaryl alkanes alkaline kation
Material.
Embodiment 5
Other are same as Example 1, and wherein dyestuff is and the dye of positive ion, and is contaminated for triaryl alkanes alkaline kation
Material, in particular alkaline crystal violet.
Verify embodiment：
In addition, according to the quick determination method of embodiment 5, using the lead indicating paper containing alkaline crystal violet to natural water,
Sanitary sewage, industrial wastewater and cosmetics etc. have carried out quick measure, and by testing result and the detection with instrument analytical method
As a result compareed, results of comparison is as shown in table 1 below：
Table 1
According to upper table as can be seen that obtaining concentration model when being used for quickly detecting with test paper method to the metallic lead contained in sample
Enclose, specific concentration value, wherein concentration model are obtained when the metallic lead contained in atomic absorption method to sample carries out quantitative detection
Enclose including specific concentration value, it follows that test paper method is capable of the concentration range of Accurate Determining heavy metal lead, it is simple to operate, and
Can Rapid Detection；In addition, when the heavy metal lead concentration detected with atomic absorption method is relatively low, test paper method inspection does not measure containing for lead
Amount, show that the detection of test paper method heavy metal lead is limited to 0.5-20mg/L according to experiment.
Claims (10)
- A kind of 1. method for detecting content of beary metal, it is characterised in that the described method comprises the following steps：(1) prepare liquid is prepared： By heavy metal sample preparation to be measured into the aqueous solution, acid solution and liquor kalii iodide are added, obtains prepare liquid；(2) prepare liquid detects： Prepare liquid is pipetted, is added dropwise on test paper and develops the color 50~100 seconds, contain dyestuff in the test paper；(3) testing result judges：Will be aobvious Color test paper is visually compared with colorimetric card, determines heavy metal concentration.
- 2. a kind of method for detecting content of beary metal according to claim 1, it is characterised in that also add when prepare liquid is prepared Enter to shelter agent solution and ascorbic acid solution, wherein, in 4~6 parts of testing sample solutions add 0.5~0.9 part of acid solution, 0.5~2.5 part of screening agent, 0.4~0.9 part of ascorbic acid solution and 1.0~3.0 parts of liquor kalii iodides and add water constant volume after shake It is even, obtain prepare liquid.
- 3. according to claim 1 it is a kind of detect content of beary metal method, it is characterised in that the acid solution be chloroazotic acid, 2.5~3mol/L salpeter solution or 2.5~4mol/L hydrochloric acid solutions.
- 4. a kind of method for detecting content of beary metal according to claim 1, it is characterised in that the dyestuff contaminates to be acid Material, acidity contain mordant dye or and the dye of positive ion.
- 5. a kind of method for detecting content of beary metal according to claim 1, it is characterised in that the screening agent is dimercapto Propyl alcohol, TGA, the citric acid solution of DMPS.
- 6. a kind of method for detecting content of beary metal according to claim 1, it is characterised in that quantitative filter paper is put into three virtues In the ethanol water of methylmethane class alkaline cationic dye；By the aqueous solution for being put into filter paper in 25~28 degree of constant temperature oscillations 40~60 minutes；Filter paper after the constant temperature oscillation is taken out and dried.
- 7. a kind of method for detecting content of beary metal according to claim 1, it is characterised in that the heavy metal is lead.
- A kind of 8. method for detecting content of beary metal according to claim 1, it is characterised in that the matter of the alkaline crystal violet Amount concentration is 600~800ppm.
- 9. a kind of method for detecting content of beary metal according to claim 4, it is characterised in that the dye of positive ion is two Aryl alkanes alkaline cationic dye or triaryl alkanes alkaline cationic dye, and triaryl alkanes alkaline cationic dye is Alkaline crystal violet.
- 10. a kind of method for detecting content of beary metal according to claim 6, it is characterised in that in the ethanol water Ethanol content is 8~10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710988676.XA CN107764818A (en) | 2017-10-22 | 2017-10-22 | A kind of method for detecting content of beary metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710988676.XA CN107764818A (en) | 2017-10-22 | 2017-10-22 | A kind of method for detecting content of beary metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107764818A true CN107764818A (en) | 2018-03-06 |
Family
ID=61268351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710988676.XA Pending CN107764818A (en) | 2017-10-22 | 2017-10-22 | A kind of method for detecting content of beary metal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107764818A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320202A (en) * | 2019-06-05 | 2019-10-11 | 中核霞浦核电有限公司 | Method that is a kind of while detecting plurality of impurities content in nuclear leve metallic sodium |
| CN110632271A (en) * | 2019-10-17 | 2019-12-31 | 绍兴市三合检测技术有限公司 | Method for detecting heavy metal in soil |
| CN112326644A (en) * | 2020-10-29 | 2021-02-05 | 郑州大学 | Heavy metal ion indicator based on Sip-Me/DMPS reversible reaction and application |
| CN114414560A (en) * | 2021-12-30 | 2022-04-29 | 广东环凯生物技术有限公司 | Test paper for measuring total chlorine, preparation method thereof and method for rapidly measuring total chlorine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776823A (en) * | 2013-09-12 | 2014-05-07 | 天津凯英科技发展有限公司 | Heavy-metal detection method, as well as test paper and preparation method thereof |
| CN104990919A (en) * | 2015-07-24 | 2015-10-21 | 天津凯英科技发展有限公司 | Method for quickly detecting heavy metal content, test paper, and preparation method thereof |
-
2017
- 2017-10-22 CN CN201710988676.XA patent/CN107764818A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776823A (en) * | 2013-09-12 | 2014-05-07 | 天津凯英科技发展有限公司 | Heavy-metal detection method, as well as test paper and preparation method thereof |
| CN104990919A (en) * | 2015-07-24 | 2015-10-21 | 天津凯英科技发展有限公司 | Method for quickly detecting heavy metal content, test paper, and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320202A (en) * | 2019-06-05 | 2019-10-11 | 中核霞浦核电有限公司 | Method that is a kind of while detecting plurality of impurities content in nuclear leve metallic sodium |
| CN110632271A (en) * | 2019-10-17 | 2019-12-31 | 绍兴市三合检测技术有限公司 | Method for detecting heavy metal in soil |
| CN112326644A (en) * | 2020-10-29 | 2021-02-05 | 郑州大学 | Heavy metal ion indicator based on Sip-Me/DMPS reversible reaction and application |
| CN114414560A (en) * | 2021-12-30 | 2022-04-29 | 广东环凯生物技术有限公司 | Test paper for measuring total chlorine, preparation method thereof and method for rapidly measuring total chlorine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2009354555B2 (en) | Method for analyzing and detecting calcium element in ore | |
| Reclo et al. | Ligandless switchable solvent based liquid phase microextraction of nickel from food and cigarette samples prior to its micro-sampling flame atomic absorption spectrometric determination | |
| CN107764818A (en) | A kind of method for detecting content of beary metal | |
| Shelor et al. | Review of analytical methods for the quantification of iodine in complex matrices | |
| Bahadir et al. | Cr speciation in water samples by dispersive liquid–liquid microextraction combined with total reflection X-ray fluorescence spectrometry | |
| Terra et al. | Solvent extraction-spectrophotometric determination of nickel (II) in natural waters using di-2-pyridyl ketone benzoylhydrazone | |
| CN106706609B (en) | Method for rapidly detecting metal ions on site based on smart phone | |
| CN103760154A (en) | Rapid heavy metal detection method, and detection test paper and preparation method thereof | |
| CN102175749A (en) | Test method for identifying cooking oil mixed with hogwash oil | |
| Amin et al. | Determination of thallium at ultra-trace levels in water and biological samples using solid phase spectrophotometry | |
| CN104990919A (en) | Method for quickly detecting heavy metal content, test paper, and preparation method thereof | |
| Zhang et al. | Preconcentration by coprecipitation of chromium in natural waters with Pd/8-quinolinol/tannic acid complex and its direct determination by solid-sampling atomic absorption spectrometry | |
| Sahuquillo et al. | Solid sample graphite furnace atomic absorption spectroscopy for supporting arsenic determination in sediments following a sequential extraction procedure | |
| CN103487391B (en) | Testing method for lead content in water body | |
| CN103543133A (en) | Method for determining content of bismuth in iron ores by hydride generation-atomic fluorescence spectrometry method | |
| CN113788788B (en) | Fluorescent ionic liquid and synthesis method and application thereof | |
| CN103776822A (en) | Rapid heavy-metal detection method, as well as test paper and preparation method thereof | |
| CN103776823A (en) | Heavy-metal detection method, as well as test paper and preparation method thereof | |
| Eskandari et al. | First-and second-derivative spectrophotometry for simultaneous determination of copper and cobalt by 1-(2-pyridylazo)-2-naphthol in Tween 80 micellar solutions | |
| CN105548056B (en) | A method of detection Gold Samples category lead ion content | |
| CN106404991A (en) | Method for determination of iron in copper alloy | |
| CN109490400A (en) | The measuring method of soluble heavy metal content in a kind of soil | |
| Yamini et al. | Solid-phase extraction of copper with cupron on octadecyl silica cartridge and its determination with atomic absorption spectrometry | |
| Lemos et al. | Determination of copper in biological samples by flame atomic absorption spectrometry after precipitation with Me-BTAP | |
| CN106802298B (en) | A kind of colorimetric recognition methods of uranyl ion |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180306 |