CN104931490A - Method for simply detecting whether air in operation environment contains lead and detection device - Google Patents
Method for simply detecting whether air in operation environment contains lead and detection device Download PDFInfo
- Publication number
- CN104931490A CN104931490A CN201510285759.3A CN201510285759A CN104931490A CN 104931490 A CN104931490 A CN 104931490A CN 201510285759 A CN201510285759 A CN 201510285759A CN 104931490 A CN104931490 A CN 104931490A
- Authority
- CN
- China
- Prior art keywords
- mentioned
- air
- resin solid
- sampling apparatus
- detection agent
- 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
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
- G01N21/783—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 for analysing gases
-
- 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
- G01N2021/775—Indicator and selective membrane
Abstract
The invention provides a method for simply detecting whether air in an operation environment contains lead. The method comprises the following steps: absorbing micro-particles of air with a certain volume in a working site for sampling; adopting a mixed solution of sulfuric acid and sodium chloride to flush an absorption body absorbing the micro-particles in a sampling device, enabling the mixed solution with the micro-particles to flow into an accommodating bottle, and dissolving lead ions in the mixed solution; filtering impurities; dropwise adding a quantitative amount of lead ion solution into a methyl thymol blue chelate resin solid detection agent; if a color change strip appears in the methyl thymol blue chelate resin solid detection agent, judging that the air in the working site contains lead; if the color change strip does not appear in the methyl thymol blue chelate resin solid detection agent, judging that the air in the working site does not contain the lead. Therefore, the whole flow process of sampling and detection can be smoothly and quickly realized and the detection purpose of efficiently judging whether the air in the working site contains the lead is achieved. The invention further provides a detection device based on the method, and the detection device can efficiently realize the flow process of the method and is flexible and smooth to operate.
Description
Technical field
The present invention relates to detection method and the device field of Lead in Air, to be specifically related in a kind of simple detection operating environment air whether leaded method and pick-up unit.
Background technology
Be detrimental to health with in the chief-criminal of children's intelligence numerous now, lead is no small one of harm.The average lead tolerance in modern human body has substantially exceeded 500 times of ancients before 1000 according to authoritative survey report! And the mankind lack initiatively, effective safeguard procedures.According to investigations, the interior average lead tolerance of present a lot of children's body is generally higher than young man; Traffic-police is darker by lead poisoning evil compared with the people of other industry again.After lead enters human body, except part is by except ight soil, sweat excretion, all the other dissolve in blood after a few hours, hinder the synthesis of blood, cause human body anaemia, occur headache, dizzy, weak, sleepy, constipation and limb aching pain etc.; Have metallic taste in some mouths, artery sclerosis, digestive tract ulcer are also relevant with lead contamination with symptoms such as fundus hemorrhages.Then there is hypoevolutism, poor appetite, inconvenient walking and constipation, insomnia in child's saturnism; If pupil, also with the phenomenon such as many dynamic, dysacousis, absent minded, feeblemindedness.This is because lead invades cerebral nerve tissue by blood after entering human body, make nutriment and oxygen supply deficiency, cause caused by brain tissue impairment, severe patient may cause permanent disbility.Particularly children are in growth and development stage, and to lead ratio, adult is more responsive, and the lead entered in body has very strong affinity to nervous system, therefore to the uptake of lead than high several times of adult, are injured particularly serious.Lead enters in pregnant woman's body then by placental barrier, can affect development of fetus, causes deformity etc.Effectively prevent saturnism, be that current scientist explores, one of the problem of capturing.As individual; strengthen to guard against, to carry out self-protection be very important; but be hard to guard against in a lot of situation; such as at operation fields such as workshops, especially lead accumulator workshop, plumbous meeting is in atmosphere floating with various forms such as compounds; get off for a long time; can cause great threat to the healthy of workman, but existing market but not have practicable operation field detection method, this problems demand solves.
Given this, inventor furthers investigate the problems referred to above, then has this case to produce.
Summary of the invention
One object of the present invention be to provide a kind of can smooth and easy quick realization sampling and the whole flow process that detects, reach and efficiently judge the testing goal whether operation field air is leaded, whether leaded flow process is succinct, method in practical simple detection operating environment air.
Its two object of the present invention be to provide a kind of can the flow process of effective implemention preceding method, flexible operation is smooth and easy, novel and reasonable structure, practical pick-up unit.
In order to achieve the above object, the present invention adopts such technical scheme:
Whether leaded a method in simple detection operating environment air, comprise the steps:
(1) at operation field, the air of certain volume is passed through sampling apparatus, the particulate utilizing sampling apparatus to absorb in air is sampled;
(2) adopt concentration to be the sulfuric acid of 50-80g/L and concentration to be the sodium chloride mixed solution of 120-150g/L to rinse the absorber absorbing particulate in sampling apparatus, the mixed solution of entrained particles is flowed in collecting bottle, makes lead ion be dissolved in mixed solution;
(3) by contaminant filter, pure lead ion solution is prepared;
(4) quantitative above-mentioned lead ion solution is instilled in the methylthymol blue chelating resin solid detection agent of sufficient length from top to bottom;
(5) if color change bar appears in methylthymol blue chelating resin solid detection agent, then judge in the air of operation field leaded; If color change bar does not appear in methylthymol blue chelating resin solid detection agent, then judge in the air of operation field not leaded.
Above-mentioned absorber is preparation like this,
S1: add thioglycolic acid, 2-methyl-tetrahydro furans and hydrosulphuric acid successively according to volume ratio 9-15:9-12:1-2 in beaker, then add water to mix and make mixed liquor;
S2: above-mentioned mixed liquor is cooled to 20-25 DEG C;
S3: the above-mentioned mixed liquor of cooling is poured into and is equipped with in the brown, wide-mouth bottle of absorbent cotton, absorbent cotton is soaked, and lidstock;
S4: the thermostatted water above-mentioned brown, wide-mouth bottle being placed in 35-40 DEG C carries out the water-bath of 100-170 hour;
S5: take out above-mentioned brown, wide-mouth bottle, and absorbent cotton is laid in the bottle,suction of two-layer Medium speed filter paper;
S6: rinse above-mentioned absorbent cotton with deionized water, until washing fluid is neutral;
S7: dry at above-mentioned absorbent cotton is placed in 40-45 DEG C.
Above-mentioned methylthymol blue chelating resin solid detection agent is synthesized according to weight ratio 1:1-2 by strong basic anion-exchange resin and methylthymol blue.
Above-mentioned methylthymol blue chelating resin solid detection agent is made in accordance with the following steps:
A1: mixed with double distilled water by above-mentioned strong basic anion-exchange resin, stirs 5-6 minute with the speed of 75-80 revolutions per second in normal temperature water-bath;
A2: above-mentioned methylthymol blue adds, stirs 20-25 minute with the speed of 75-80 revolutions per second in normal temperature water-bath;
A3: filter;
A4: rinse 9-15 second with double distilled water.
In above-mentioned steps (5), the length of getting above-mentioned methylthymol blue chelating resin solid detection agent is 100-110mm, puts into glass tube, and top and bottom absorbent cotton shutoff is located and limited the length of methylthymol blue chelating resin solid detection agent; Get above-mentioned lead ion solution 2.5-3ml.
A kind of pick-up unit, the pick-up unit comprising sampling apparatus, be communicated in the collecting bottle below sampling apparatus and be in below collecting bottle;
The gas meter that described sampling apparatus comprises sampling apparatus main body, is connected to the air pump of the outlet side of sampling apparatus main body and is located in the draft tube of air pump; The Sulfhydryl Cotton absorber that described sampling apparatus main body comprises body, absorbent cotton silk screen from outside to inside successively and is installed in absorbent cotton silk screen, the outlet side block of described body has copper mesh layers; Be provided with the feed tube upwards extended between the two ends of described body, described feed tube is equipped with lid; The inlet end of described body is equipped with the first end cap, and outlet side is equipped with the second end cap; The side face of the inlet end of described body is formed with the first external thread, and described first end cap is formed with the first internal thread matched with described first external thread; The side face of the outlet side of described body is formed with the second external thread, and described second end cap is formed with the second internal thread matched with described second external thread;
Described collecting bottle comprises collecting bottle main body, be communicated in communicating pipe between collecting bottle main body with described body, be communicated in collecting bottle lower body part and the liquid outlet fluid tap corresponding with described pick-up unit and be communicated in collecting bottle body top and the gas outlet extended upward, the upper port gear of described communicating pipe is provided with screen pack, described gas outlet is equipped with lid, and described fluid tap is equipped with switch;
Described pick-up unit comprises glass tube, be installed on methylthymol blue chelating resin solid detection agent in glass tube and two absorbent cotton being plugged in methylthymol blue chelating resin solid detection agent two ends respectively and positioning, and the upper port of described glass tube is corresponding with the liquid outlet of described fluid tap.
The inlet end side face of above-mentioned tubular body is provided with the first sealing ring be between above-mentioned first external thread and the second external thread, the medial surface of described first end cap is formed with the first thin diameter section near the lid end and the first wide section near lid mouth, be formed with the first sealing station terrace supported mutually with described first sealing ring between described first thin diameter section and the first wide section, described first sealing station terrace is to lid tapered circular cone inclined-plane, direction, the end by lid mouth; Described first female thread is formed in described first thin diameter section;
The outlet side side face of described body is provided with the second sealing ring be between described second external thread and the first external thread, the medial surface of described second end cap is formed with the second thin diameter section near the lid end and the second wide section near lid mouth, be formed with the second sealing station terrace supported mutually with described second sealing ring between described second thin diameter section and the second wide section, described second sealing station terrace is to lid tapered circular cone inclined-plane, direction, the end by lid mouth; Described second female thread is formed in described second thin diameter section;
The air intake opening of the draft tube of described air pump is formed with the 3rd internal thread matched with described second external thread, the medial surface of described draft tube is formed with the 3rd thin diameter section away from the second sealing ring and the 3rd wide section near the second sealing ring, be formed with the 3rd sealing station terrace supported mutually with described second sealing ring between described 3rd thin diameter section and the 3rd wide section, described 3rd sealing station terrace is by the inside tapered circular cone inclined-plane of air intake opening; Described 3rd female thread is formed in described 3rd thin diameter section.
The xsect of above-mentioned tapered slope is indent camber line.
After adopting technique scheme, method whether leaded in simple detection operating environment air of the present invention, break through the on-the-spot plumbous form detected of traditional work, in actual mechanical process, at operation field, the air of certain volume is passed through sampling apparatus, the particulate utilizing sampling apparatus to absorb in air is sampled; Adopt concentration to be the sulfuric acid of 50-80g/L and concentration to be the sodium chloride mixed solution of 120-150g/L to rinse the absorber absorbing particulate in sampling apparatus, the mixed solution of entrained particles is flowed in collecting bottle, makes lead ion be dissolved in mixed solution; By contaminant filter, prepare pure lead ion solution; Quantitative above-mentioned lead ion solution is from top to bottom instilled in the methylthymol blue chelating resin solid detection agent of sufficient length; If color change bar appears in methylthymol blue chelating resin solid detection agent, then judge in the air of operation field leaded; If color change bar does not appear in methylthymol blue chelating resin solid detection agent, then judge in the air of operation field not leaded.Compared with prior art, whether leaded method in simple detection operating environment air of the present invention, it can smooth and easy quick realization sampling and the whole flow process that detects, and reach and efficiently judge the testing goal whether operation field air is leaded, flow process is succinctly, practical.
Whether leaded the present invention also propose a kind of pick-up unit based on method in simple detection operating environment air, can the flow process of effective implemention the method, and flexible operation is smooth and easy, novel and reasonable structure, practical.
Accompanying drawing explanation
Fig. 1 is easy structure schematic diagram of the present invention;
Fig. 2 is the sectional structure schematic diagram of sampling apparatus first state;
Fig. 3 is the sectional structure schematic diagram of sampling apparatus second state.
In figure:
1-sampling apparatus main body 11-body
111-copper mesh layers 112-first end cap
1121-first internal thread 1122-first thin diameter section
1123-first wide section 1124-first sealing station terrace
113-second end cap 1131-second internal thread
1132-second thin diameter section 1133-second wide section
1134-second sealing station terrace 114-first external thread
115-second external thread 116-first sealing ring
117-second sealing ring 118-feed tube
12-absorbent cotton silk screen
13-Sulfhydryl Cotton absorber
2-air pump 21-draft tube
211-the 3rd internal thread 212-the 3rd thin diameter section
213-the 3rd wide section 214-the 3rd sealing station terrace
3-gas meter
20-collecting bottle 201-collecting bottle main body
202-communicating pipe 2021-screen pack
203-fluid tap 2031-switch
204-gas outlet
30-pick-up unit 301-glass tube
302-methylthymol blue chelating resin solid detection agent
303-absorbent cotton.
Embodiment
In order to explain technical scheme of the present invention further, be described in detail below by specific embodiment.
Method whether leaded in a kind of simple detection operating environment air of the present invention.
Embodiment one, comprises the steps:
(1) at operation field, the air of 1 cubic metre is passed through sampling apparatus, the particulate utilizing sampling apparatus to absorb in air is sampled;
(2) adopt concentration to be the sulfuric acid of 50g/L and concentration to be the sodium chloride mixed solution of 120g/L to rinse the absorber absorbing particulate in sampling apparatus, the mixed solution of entrained particles is flowed in collecting bottle, makes lead ion be dissolved in mixed solution;
(3) in order to avoid the impact of impurity, by contaminant filter, pure lead ion solution is prepared;
(4) in order to ensure validity and the intuitive of reaction, and being convenient to measure, above-mentioned for 2ml lead ion solution being instilled in the long methylthymol blue chelating resin solid detection agent of 100mm from top to bottom;
(5) if color change bar (blueness) appears in methylthymol blue chelating resin solid detection agent, then judge in the air of operation field leaded; If color change bar does not appear in methylthymol blue chelating resin solid detection agent, then judge in the air of operation field not leaded.
Embodiment two, comprises the steps:
(1) at operation field, the air of 1.5 cubic metres is passed through sampling apparatus, the particulate utilizing sampling apparatus to absorb in air is sampled;
(2) adopt concentration to be the sulfuric acid of 65g/L and concentration to be the sodium chloride mixed solution of 135g/L to rinse the absorber absorbing particulate in sampling apparatus, the mixed solution of entrained particles is flowed in collecting bottle, makes lead ion be dissolved in mixed solution;
(3) in order to avoid the impact of impurity, by contaminant filter, pure lead ion solution is prepared;
(4) in order to ensure validity and the intuitive of reaction, and being convenient to measure, above-mentioned for 2ml lead ion solution being instilled in the long methylthymol blue chelating resin solid detection agent of 105mm from top to bottom;
(5) if color change bar (blueness) appears in methylthymol blue chelating resin solid detection agent, then judge in the air of operation field leaded; If color change bar does not appear in methylthymol blue chelating resin solid detection agent, then judge in the air of operation field not leaded.
Embodiment three, comprises the steps:
(1) at operation field, the air of 2 cubic metres is passed through sampling apparatus, the particulate utilizing sampling apparatus to absorb in air is sampled;
(2) adopt concentration to be the sulfuric acid of 80g/L and concentration to be the sodium chloride mixed solution of 150g/L to rinse the absorber absorbing particulate in sampling apparatus, the mixed solution of entrained particles is flowed in collecting bottle, makes lead ion be dissolved in mixed solution;
(3) in order to avoid the impact of impurity, by contaminant filter, pure lead ion solution is prepared;
(4) in order to ensure validity and the intuitive of reaction, and being convenient to measure, above-mentioned for 2ml lead ion solution being instilled in the long methylthymol blue chelating resin solid detection agent of 110mm from top to bottom;
(5) if color change bar (blueness) appears in methylthymol blue chelating resin solid detection agent, then judge in the air of operation field leaded; If color change bar does not appear in methylthymol blue chelating resin solid detection agent, then judge in the air of operation field not leaded.
Above-mentioned absorber is preparation like this,
Embodiment four:
S1: add thioglycolic acid, 2-methyl-tetrahydro furans and hydrosulphuric acid successively according to volume ratio 9:9:1 in beaker, then add water to mix and make mixed liquor;
S2: above-mentioned mixed liquor is cooled to 20 DEG C;
S3: the above-mentioned mixed liquor of cooling is poured into and is equipped with in the brown, wide-mouth bottle of absorbent cotton, absorbent cotton is soaked, and lidstock;
S4: the thermostatted water above-mentioned brown, wide-mouth bottle being placed in 35 DEG C carries out the water-bath of 100 hours;
S5: take out above-mentioned brown, wide-mouth bottle, and absorbent cotton is laid in the bottle,suction of two-layer Medium speed filter paper;
S6: rinse above-mentioned absorbent cotton with deionized water, until washing fluid is neutral;
S7: dry at above-mentioned absorbent cotton is placed in 40 DEG C, makes absorbent cotton have adsorbability to leaded particulate etc. and chemical stability, i.e. obtained Sulfhydryl Cotton.
Embodiment five:
S1: add thioglycolic acid, 2-methyl-tetrahydro furans and hydrosulphuric acid successively according to volume ratio 12:10.5:1.5 in beaker, then add water to mix and make mixed liquor;
S2: above-mentioned mixed liquor is cooled to 22.5 DEG C;
S3: the above-mentioned mixed liquor of cooling is poured into and is equipped with in the brown, wide-mouth bottle of absorbent cotton, absorbent cotton is soaked, and lidstock;
S4: the thermostatted water above-mentioned brown, wide-mouth bottle being placed in 37.5 DEG C carries out the water-bath of 135 hours;
S5: take out above-mentioned brown, wide-mouth bottle, and absorbent cotton is laid in the bottle,suction of two-layer Medium speed filter paper;
S6: rinse above-mentioned absorbent cotton with deionized water, until washing fluid is neutral;
S7: dry at above-mentioned absorbent cotton is placed in 42.5 DEG C.
Embodiment six:
S1: add thioglycolic acid, 2-methyl-tetrahydro furans and hydrosulphuric acid successively according to volume ratio 15:12:2 in beaker, then add water to mix and make mixed liquor;
S2: above-mentioned mixed liquor is cooled to 25 DEG C;
S3: the above-mentioned mixed liquor of cooling is poured into and is equipped with in the brown, wide-mouth bottle of absorbent cotton, absorbent cotton is soaked, and lidstock;
S4: the thermostatted water above-mentioned brown, wide-mouth bottle being placed in 40 DEG C carries out the water-bath of 170 hours;
S5: take out above-mentioned brown, wide-mouth bottle, and absorbent cotton is laid in the bottle,suction of two-layer Medium speed filter paper;
S6: rinse above-mentioned absorbent cotton with deionized water, until washing fluid is neutral;
S7: dry at above-mentioned absorbent cotton is placed in 45 DEG C.
Above-mentioned methylthymol blue chelating resin solid detection agent is synthesized according to weight ratio 1:1 by strong basic anion-exchange resin and methylthymol blue; Or synthesize according to weight ratio 1:1.5; Or according to weight ratio 1:2 synthesis, strong basic anion-exchange resin and methylthymol blue highly effective chelating can be made like this.
Above-mentioned methylthymol blue chelating resin solid detection agent is made in accordance with the following steps:
Embodiment seven:
A1: mixed with double distilled water by above-mentioned strong basic anion-exchange resin, stirs 6 minutes with the speed of 75 revolutions per seconds in normal temperature water-bath;
A2: above-mentioned methylthymol blue adds, stirs 25 minutes with the speed of 75 revolutions per seconds in normal temperature water-bath;
A3: filter, leaches the solid portion of chelating;
A4: rinse 9 seconds with double distilled water.
Embodiment eight:
A1: mixed with double distilled water by above-mentioned strong basic anion-exchange resin, stirs 5.5 minutes with the speed of 77 revolutions per seconds in normal temperature water-bath;
A2: above-mentioned methylthymol blue adds, stirs 22.5 minutes with the speed of 77 revolutions per seconds in normal temperature water-bath;
A3: filter, leaches the solid portion of chelating;
A4: rinse 12 seconds with double distilled water.
Embodiment nine:
A1: mixed with double distilled water by above-mentioned strong basic anion-exchange resin, stirs 5 minutes with the speed of 80 revolutions per seconds in normal temperature water-bath;
A2: above-mentioned methylthymol blue adds, stirs 20 minutes with the speed of 80 revolutions per seconds in normal temperature water-bath;
A3: filter, leaches the solid portion of chelating;
A4: rinse 15 seconds with double distilled water.
In above-mentioned steps (5), the length of getting above-mentioned methylthymol blue chelating resin solid detection agent is 100mm, 105mm or 110mm, weight is 150-165mg, put into glass tube, top and bottom absorbent cotton shutoff is located and is limited the length of methylthymol blue chelating resin solid detection agent; Get above-mentioned lead ion solution 2.5ml, 2.7ml or 3ml.
A kind of pick-up unit of the present invention, the pick-up unit 30 as Figure 1-3, comprising sampling apparatus 1, be communicated in the collecting bottle 20 below sampling apparatus 1 and be in below collecting bottle 20;
The gas meter 3 that sampling apparatus 1 comprises sampling apparatus main body 1, is connected to the air pump 2 of the outlet side of sampling apparatus main body 1 and is located in the draft tube 21 of air pump 2; The Sulfhydryl Cotton absorber 13 that sampling apparatus main body 1 comprises body 11, absorbent cotton silk screen 12 from outside to inside successively and is installed in absorbent cotton silk screen 12, the outlet side block of body 11 has copper mesh layers 111, copper mesh layers 111 can position absorbent cotton silk screen 12 and inner Sulfhydryl Cotton absorber 13, especially avoids being moved to air pump 2 under the blowing force of air-flow; Be provided with the feed tube 118 upwards extended between the two ends of body 11, feed tube 118 is equipped with lid, and this lid can be opened where necessary; The inlet end of body 11 is equipped with the first end cap 112, and outlet side is equipped with the second end cap 113; The side face of the inlet end of body 11 is formed with the first external thread 114, first end cap 112 is formed with the first internal thread 1121 matched with the first external thread 114, first end cap 112 can rely on the cooperation of the first external thread 114 and the first internal thread 1121, and realization is spirally connected with body 11 inlet end; The side face of the outlet side of body 11 is formed with the second external thread 115, second end cap 113 is formed with the second internal thread 1131 matched with the second external thread 115, second end cap 113 can rely on the cooperation of the second external thread 115 and the second internal thread 1131, and realization is spirally connected with body 11 outlet side;
Collecting bottle 20 comprises collecting bottle main body 201, be communicated in the communicating pipe 202 between collecting bottle main body 201 and body 11, be communicated in collecting bottle main body 201 bottom and the liquid outlet fluid tap 203 corresponding with pick-up unit 30, with be communicated in collecting bottle main body 201 top and the gas outlet 204 that extends upward, the upper port gear of communicating pipe 202 is provided with screen pack 2021, screen pack 2021 can filter the liquid flowed down, gas outlet 204 is equipped with lid, this lid can be opened where necessary, fluid tap 203 is equipped with switch 2031, operating this switch 2031 can make the solution in collecting bottle 20 flow out to from fluid tap 203 on pick-up unit 30, or fluid tap 203 is closed,
Pick-up unit 30 comprises glass tube 301, be installed on methylthymol blue chelating resin solid detection agent 302 in glass tube 301 and two absorbent cotton 303 being plugged in methylthymol blue chelating resin solid detection agent 302 two ends respectively and positioning, and the upper port of glass tube 301 is corresponding with the liquid outlet of fluid tap 203.The present invention in actual use, when sampling apparatus main body 1 does not work, first end cap 112 and the second end cap 113 can be screwed onto the two ends of body 11, realize the sealing capping by the first end cap 112 and the second end cap 113 pairs of bodys 11, reach the effective sealing to Sulfhydryl Cotton absorber 13, ensure the validity of absorption of sample workspace before work, and absorb the index stability after sample.When sampling apparatus main body 1 works, first end cap 112 and the second end cap 113 are pulled down, make the both ends open of body 11, and the draft tube 21 of air pump 2 is connected to the outlet side of body 11, realize being tightly connected draft tube 21 and body 11, and then air pump 2 can be opened make air by body 11 and through Sulfhydryl Cotton absorber 13, the leaded particulate in air-flow absorbs by Sulfhydryl Cotton absorber 13 samples, gas meter 3 calculates the volume of air-flow, is convenient to subsequent statistical.After sampling terminates, pour in body 11 with the sodium chloride mixed solution of concentration to be the sulfuric acid of 50-80g/L and concentration be 120-150g/L by feed tube 118, rinse through absorbent cotton silk screen 12 pairs of Sulfhydryl Cotton absorbers 13, the particulate that Sulfhydryl Cotton absorber 13 adsorbs is rinsed out, and be dissolved in mixed solution, then after being filtered by screen pack 2021, along flowing into communicating pipe 202 in collecting bottle main body 201, opening gas outlet 204 can be convenient in solution inflow collecting bottle main body 201, reach a certain amount of after, open switch 2031, mixed solution is flowed out gradually by fluid tap 203, the methylthymol blue chelating resin solid detection agent 302 of pick-up unit 30 is instilled by the upper port of glass tube 301, if there is color change bar (blueness) in methylthymol blue chelating resin solid detection agent 302, then judge in the air of operation field leaded, if color change bar does not appear in methylthymol blue chelating resin solid detection agent 302, then judge in the air of operation field not leaded.
In order to specific implementation body 11 and the Hermetical connecting structure of miscellaneous part, preferably, the inlet end side face of body 11 is provided with the first sealing ring 116 be between the first external thread 114 and the second external thread 115, the medial surface of the first end cap 112 is formed with the first thin diameter section 1122 near the lid end and the first wide section 1123 near lid mouth, being formed with the first sealing station terrace 1124, the first sealing station terrace 1124 supported mutually with the first sealing ring 116 between first thin diameter section 1122 and the first wide section 1123 is to covering tapered circular cone inclined-plane, direction, the end by lid mouth; First internal thread 1121 is formed at the first thin diameter section 1122;
The outlet side side face of body 11 is provided with the second sealing ring 117 be between the second external thread 115 and the first external thread 114, the medial surface of the second end cap 113 is formed with the second thin diameter section 1132 near the lid end and the second wide section 1133 near lid mouth, being formed with the second sealing station terrace 1134, the second sealing station terrace 1134 supported mutually with the second sealing ring 117 between second thin diameter section 1132 and the second wide section 1133 is to covering tapered circular cone inclined-plane, direction, the end by lid mouth; Second internal thread 1131 is formed at the second thin diameter section 1132;
The air intake opening of the draft tube 21 of air pump 2 is formed with the 3rd internal thread 211 matched with the second external thread 115, and draft tube 21 can rely on the cooperation of the second external thread 115 and the 3rd internal thread 211, and realization is spirally connected with body 11 outlet side; The medial surface of draft tube 21 is formed with the 3rd thin diameter section 212 away from the second sealing ring 117 and the 3rd wide section 213 near the second sealing ring 117, being formed with the 3rd sealing station terrace the 214, three sealing station terrace 214 supported mutually with the second sealing ring 117 between 3rd thin diameter section 212 and the 3rd wide section 213 is by the inside tapered circular cone inclined-plane of air intake opening; 3rd internal thread 211 is formed at the 3rd thin diameter section 212.Like this, the present invention in actual use, when sampling apparatus main body 1 does not work, first end cap 112 and the second end cap 113 can be screwed onto the two ends of body 11, and support respectively on the first sealing ring 116 and the second sealing ring 117 by conical first sealing station terrace 1124 and the second sealing station terrace 1134, and utilize the precession gradually of the first end cap 112 and the second end cap 113 and compress gradually, realize the sealing capping by the first end cap 112 and the second end cap 113 pairs of bodys 11, reach the effective sealing to Sulfhydryl Cotton absorber 13, ensure the validity of absorption of sample workspace before work, and the index stability after absorption sample.When sampling apparatus main body 1 works, first end cap 112 and the second end cap 113 are pulled down, make the both ends open of body 11, and the draft tube 21 of air pump 2 is screwed onto the outlet side of body 11, support on the second sealing ring 117 by conical 3rd sealing station terrace 214, and utilize the precession gradually of draft tube 21 and compress gradually, realize being tightly connected draft tube 21 and body 11, and then air pump 2 can be opened make air by body 11 and through Sulfhydryl Cotton absorber 13, leaded particulate in air-flow absorbs by Sulfhydryl Cotton absorber 13 samples, gas meter 3 calculates the volume of air-flow, be convenient to subsequent statistical.Concrete structure can be, and the side face of body 11 is formed with the ring groove fixing the first sealing ring 116 and the second sealing ring 117.Draft tube 21 is be rotatably connected with the main part of air pump 2, and then is convenient to and being spirally connected of body 11.
In order to increase the degree that cooperatively interacts of the first sealing station terrace 1124, second sealing station terrace 1134 and the 3rd sealing station terrace 214 and the first sealing ring 116 and the second sealing ring 117, enlarge active surface, and then enhancing sealing property, preferably, the first sealing station terrace 1124, second sealing station terrace 1134 of tapered slope form and the xsect of the 3rd sealing station terrace 214 are indent camber line.Namely tapered slope and the first sealing ring 116 and the second sealing ring 117 can form flexible compression relation.
Method whether leaded in simple detection operating environment air of the present invention, the two ends of glass tube are equipped with sealing lid respectively, available protecting can be carried out to methylthymol blue chelating resin solid detection agent, guarantee validity and the stability of methylthymol blue chelating resin solid detection agent; The concrete form of tapered slope also can carry out adjusting and designing according to actual requirement; First sealing ring and the second sealing ring are preferably elastomeric material, and its concrete form and material etc. all can carry out adjusting and designing according to actual requirement; The concrete form, setting position etc. of the first internal thread, the second internal thread, the 3rd internal thread, the first external thread, the second external thread, the first sealing station terrace, the second sealing station terrace, the 3rd sealing station terrace, the first thin diameter section, the first wide section, the second thin diameter section, the second wide section and the first end cap, the second end cap, copper mesh layers, draft tube, body, absorbent cotton silk screen, Sulfhydryl Cotton absorber, air pump and gas meter can carry out adjusting and designing according to actual requirement.
Product form of the present invention is not limited to this case diagram and embodiment, and anyone carries out suitable change or the modification of similar thinking to it, all should be considered as not departing from patent category of the present invention.
Claims (8)
1. whether leaded a method in simple detection operating environment air, is characterized in that, comprise the steps:
(1) at operation field, the air of certain volume is passed through sampling apparatus, the particulate utilizing sampling apparatus to absorb in air is sampled;
(2) adopt concentration to be the sulfuric acid of 50-80g/L and concentration to be the sodium chloride mixed solution of 120-150g/L to rinse the absorber absorbing particulate in sampling apparatus, the mixed solution of entrained particles is flowed in collecting bottle, makes lead ion be dissolved in mixed solution;
(3) by contaminant filter, pure lead ion solution is prepared;
(4) quantitative above-mentioned lead ion solution is instilled in the methylthymol blue chelating resin solid detection agent of sufficient length from top to bottom;
(5) if color change bar appears in methylthymol blue chelating resin solid detection agent, then judge in the air of operation field leaded; If color change bar does not appear in methylthymol blue chelating resin solid detection agent, then judge in the air of operation field not leaded.
2. whether leaded method in a kind of simple detection operating environment air according to claim 1, is characterized in that: above-mentioned absorber is preparation like this,
S1: add thioglycolic acid, 2-methyl-tetrahydro furans and hydrosulphuric acid successively according to volume ratio 9-15:9-12:1-2 in beaker, then add water to mix and make mixed liquor;
S2: above-mentioned mixed liquor is cooled to 20-25 DEG C;
S3: the above-mentioned mixed liquor of cooling is poured into and is equipped with in the brown, wide-mouth bottle of absorbent cotton, absorbent cotton is soaked, and lidstock;
S4: the thermostatted water above-mentioned brown, wide-mouth bottle being placed in 35-40 DEG C carries out the water-bath of 100-170 hour;
S5: take out above-mentioned brown, wide-mouth bottle, and absorbent cotton is laid in the bottle,suction of two-layer Medium speed filter paper;
S6: rinse above-mentioned absorbent cotton with deionized water, until washing fluid is neutral;
S7: dry at above-mentioned absorbent cotton is placed in 40-45 DEG C.
3. whether leaded method in a kind of simple detection operating environment air according to claim 1, is characterized in that: above-mentioned methylthymol blue chelating resin solid detection agent is synthesized according to weight ratio 1:1-2 by strong basic anion-exchange resin and methylthymol blue.
4. whether leaded method in a kind of simple detection operating environment air according to claim 3, is characterized in that: above-mentioned methylthymol blue chelating resin solid detection agent is made in accordance with the following steps:
A1: mixed with double distilled water by above-mentioned strong basic anion-exchange resin, stirs 5-6 minute with the speed of 75-80 revolutions per second in normal temperature water-bath;
A2: above-mentioned methylthymol blue adds, stirs 20-25 minute with the speed of 75-80 revolutions per second in normal temperature water-bath;
A3: filter;
A4: rinse 9-15 second with double distilled water.
5. method whether leaded in a kind of simple detection operating environment air according to claim 1, it is characterized in that: in above-mentioned steps (5), the length of getting above-mentioned methylthymol blue chelating resin solid detection agent is 100-110mm, put into glass tube, top and bottom absorbent cotton shutoff is located and is limited the length of methylthymol blue chelating resin solid detection agent; Get above-mentioned lead ion solution 2.5-3ml.
6., based on the pick-up unit that in the simple detection operating environment air described in claim 1-5, whether leaded method adopts, it is characterized in that: the pick-up unit comprising sampling apparatus, be communicated in the collecting bottle below sampling apparatus and be in below collecting bottle;
The gas meter that described sampling apparatus comprises sampling apparatus main body, is connected to the air pump of the outlet side of sampling apparatus main body and is located in the draft tube of air pump; The Sulfhydryl Cotton absorber that described sampling apparatus main body comprises body, absorbent cotton silk screen from outside to inside successively and is installed in absorbent cotton silk screen, the outlet side block of described body has copper mesh layers; Be provided with the feed tube upwards extended between the two ends of described body, described feed tube is equipped with lid; The inlet end of described body is equipped with the first end cap, and outlet side is equipped with the second end cap; The side face of the inlet end of described body is formed with the first external thread, and described first end cap is formed with the first internal thread matched with described first external thread; The side face of the outlet side of described body is formed with the second external thread, and described second end cap is formed with the second internal thread matched with described second external thread;
Described collecting bottle comprises collecting bottle main body, be communicated in communicating pipe between collecting bottle main body with described body, be communicated in collecting bottle lower body part and the liquid outlet fluid tap corresponding with described pick-up unit and be communicated in collecting bottle body top and the gas outlet extended upward, the upper port gear of described communicating pipe is provided with screen pack, described gas outlet is equipped with lid, and described fluid tap is equipped with switch;
Described pick-up unit comprises glass tube, be installed on methylthymol blue chelating resin solid detection agent in glass tube and two absorbent cotton being plugged in methylthymol blue chelating resin solid detection agent two ends respectively and positioning, and the upper port of described glass tube is corresponding with the liquid outlet of described fluid tap.
7. a kind of sampling apparatus according to claim 6, it is characterized in that: the inlet end side face of above-mentioned tubular body is provided with the first sealing ring be between above-mentioned first external thread and the second external thread, the medial surface of described first end cap is formed with the first thin diameter section near the lid end and the first wide section near lid mouth, be formed with the first sealing station terrace supported mutually with described first sealing ring between described first thin diameter section and the first wide section, described first sealing station terrace is to lid tapered circular cone inclined-plane, direction, the end by lid mouth; Described first female thread is formed in described first thin diameter section;
The outlet side side face of described body is provided with the second sealing ring be between described second external thread and the first external thread, the medial surface of described second end cap is formed with the second thin diameter section near the lid end and the second wide section near lid mouth, be formed with the second sealing station terrace supported mutually with described second sealing ring between described second thin diameter section and the second wide section, described second sealing station terrace is to lid tapered circular cone inclined-plane, direction, the end by lid mouth; Described second female thread is formed in described second thin diameter section;
The air intake opening of the draft tube of described air pump is formed with the 3rd internal thread matched with described second external thread, the medial surface of described draft tube is formed with the 3rd thin diameter section away from the second sealing ring and the 3rd wide section near the second sealing ring, be formed with the 3rd sealing station terrace supported mutually with described second sealing ring between described 3rd thin diameter section and the 3rd wide section, described 3rd sealing station terrace is by the inside tapered circular cone inclined-plane of air intake opening; Described 3rd female thread is formed in described 3rd thin diameter section.
8. a kind of sampling apparatus according to claim 7, is characterized in that: the xsect of above-mentioned tapered slope is indent camber line.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710196018.7A CN106990103B (en) | 2015-05-29 | 2015-05-29 | In a kind of detection operating environment air whether leaded detection device |
| CN201510285759.3A CN104931490B (en) | 2015-05-29 | 2015-05-29 | In a kind of simple detection operation surrounding air whether leaded detection means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510285759.3A CN104931490B (en) | 2015-05-29 | 2015-05-29 | In a kind of simple detection operation surrounding air whether leaded detection means |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710196018.7A Division CN106990103B (en) | 2015-05-29 | 2015-05-29 | In a kind of detection operating environment air whether leaded detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104931490A true CN104931490A (en) | 2015-09-23 |
| CN104931490B CN104931490B (en) | 2017-07-25 |
Family
ID=54118762
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710196018.7A Active CN106990103B (en) | 2015-05-29 | 2015-05-29 | In a kind of detection operating environment air whether leaded detection device |
| CN201510285759.3A Active CN104931490B (en) | 2015-05-29 | 2015-05-29 | In a kind of simple detection operation surrounding air whether leaded detection means |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710196018.7A Active CN106990103B (en) | 2015-05-29 | 2015-05-29 | In a kind of detection operating environment air whether leaded detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN106990103B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033320A (en) * | 1987-10-14 | 1989-06-07 | 北京市理化分析测试中心 | The plumbous detector tube of poisonous metal in the simple and easy fast measuring water |
| US5038793A (en) * | 1989-01-10 | 1991-08-13 | La Mina Ltd. | Urine testing membrane module and method of conducting same |
| CN101672791A (en) * | 2009-10-13 | 2010-03-17 | 北京化工大学 | Quick detecting tube for micro-ammonia gas |
| CN103196902A (en) * | 2012-01-04 | 2013-07-10 | 窦荣艳 | Air formaldehyde self-detecting box |
| US20140242714A1 (en) * | 2013-02-22 | 2014-08-28 | Bha Altair, Llc | Air monitoring system and method |
| CN204630939U (en) * | 2015-05-29 | 2015-09-09 | 福建拓普检测技术有限公司 | A kind of pick-up unit |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4994117A (en) * | 1986-08-13 | 1991-02-19 | Fehder Carl G | Quantitative carbon dioxide detector |
| EP0508010A1 (en) * | 1991-04-10 | 1992-10-14 | La Mina Ltd. | Biological fluids testing membrane module and method of conducting same |
| CN203981574U (en) * | 2014-05-29 | 2014-12-03 | 北京物资学院 | The total plumbous on-line monitoring instrument of atmosphere |
-
2015
- 2015-05-29 CN CN201710196018.7A patent/CN106990103B/en active Active
- 2015-05-29 CN CN201510285759.3A patent/CN104931490B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033320A (en) * | 1987-10-14 | 1989-06-07 | 北京市理化分析测试中心 | The plumbous detector tube of poisonous metal in the simple and easy fast measuring water |
| US5038793A (en) * | 1989-01-10 | 1991-08-13 | La Mina Ltd. | Urine testing membrane module and method of conducting same |
| CN101672791A (en) * | 2009-10-13 | 2010-03-17 | 北京化工大学 | Quick detecting tube for micro-ammonia gas |
| CN103196902A (en) * | 2012-01-04 | 2013-07-10 | 窦荣艳 | Air formaldehyde self-detecting box |
| US20140242714A1 (en) * | 2013-02-22 | 2014-08-28 | Bha Altair, Llc | Air monitoring system and method |
| CN204630939U (en) * | 2015-05-29 | 2015-09-09 | 福建拓普检测技术有限公司 | A kind of pick-up unit |
Non-Patent Citations (3)
| Title |
|---|
| 张占平: "化学发光分析在空气污染研究中的应用", 《科技风》 * |
| 毛宇: "垃圾焚烧烟气中Hg、Pb、Cd的催化吸附净化及协同效应研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》 * |
| 邓义等: "微波消解-HG-AFS法分析空气中铅", 《中国环境科学学会学术年会论文集》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104931490B (en) | 2017-07-25 |
| CN106990103A (en) | 2017-07-28 |
| CN106990103B (en) | 2019-04-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104865345B (en) | A kind of method of simple detection operating environment Lead in Air content | |
| CN204699119U (en) | Blood purification consumptive material and end cap thereof | |
| CN204630939U (en) | A kind of pick-up unit | |
| CN105738462A (en) | Detection method for microelements in peripheral blood | |
| CN104931490A (en) | Method for simply detecting whether air in operation environment contains lead and detection device | |
| CN104764648A (en) | Urine purifying apparatus for testing iodide ions in urine, and purifying method thereof | |
| CN204630784U (en) | A kind of sampling apparatus | |
| CN204705644U (en) | A kind of cardio-vascular clinical diagnostic device | |
| CN206508761U (en) | It is a kind of except the absorption plant of ammonia | |
| CN206695858U (en) | A kind of accurate water meter with filtering function | |
| CN204709534U (en) | A kind of efficient air purifier of infusion set | |
| CN205642460U (en) | Water meter with filtering function | |
| CN208727533U (en) | A kind of novel and multifunctional gas collecting apparatus | |
| CN205287148U (en) | Hydrogen therapeutic apparatus | |
| CN202933717U (en) | Effluent collection and storage tank for chemical laboratory | |
| CN205556166U (en) | Automatic domestic soft water apparatus for producing of control quality | |
| CN215161144U (en) | Purification water treatment facilities convenient to sample detection | |
| CN205433714U (en) | Blood collecting bottle is used in autologous immune cell treatment blood sampling | |
| CN202860148U (en) | Distilling device | |
| CN209204255U (en) | A kind of simple blood purification device | |
| CN204384984U (en) | A kind of absorption to solubilised state mercury in natural water body and pre-concentration device | |
| CN210457622U (en) | Silicon element drinking device | |
| CN207786152U (en) | A kind of oxygenerator filter device | |
| CN208511935U (en) | A kind of macroporous absorption column fluid level control device | |
| CN104922764B (en) | A kind of efficient air purifier of infusion device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 350000, Fujian, Fuzhou province Cangshan new town built new North Road, No. 2, building F, District, west side of the -2 Applicant after: Fujian Tuo Pu detection technique company limited Address before: 350000, Fujian, Quanzhou province Cangshan new town built new North Road, No. 2, building F, District, west side of the -2 Applicant before: Fujian Tuo Pu detection technique company limited |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Detection device for simply detecting whether air in operation environment contains lead Effective date of registration: 20200519 Granted publication date: 20170725 Pledgee: Agricultural Bank of China Limited Fuzhou Taijiang sub branch Pledgor: FUJIAN TUOPU DETECTION TECHNOLOGY Co.,Ltd. Registration number: Y2020350000034 |