CN106990103B - In a kind of detection operating environment air whether leaded detection device - Google Patents
In a kind of detection operating environment air whether leaded detection device Download PDFInfo
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- CN106990103B CN106990103B CN201710196018.7A CN201710196018A CN106990103B CN 106990103 B CN106990103 B CN 106990103B CN 201710196018 A CN201710196018 A CN 201710196018A CN 106990103 B CN106990103 B CN 106990103B
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- 238000001514 detection method Methods 0.000 title claims abstract description 77
- 238000005070 sampling Methods 0.000 claims abstract description 45
- 239000007787 solid Substances 0.000 claims abstract description 37
- DIZZDZCUMBBRSG-UHFFFAOYSA-J tetrasodium;2-[[5-[3-[3-[[bis(carboxylatomethyl)amino]methyl]-4-hydroxy-2-methyl-5-propan-2-ylphenyl]-1,1-dioxo-2,1$l^{6}-benzoxathiol-3-yl]-2-hydroxy-6-methyl-3-propan-2-ylphenyl]methyl-(carboxylatomethyl)amino]acetate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CC1=C(O)C(C(C)C)=CC(C2(C3=CC=CC=C3S(=O)(=O)O2)C=2C(=C(CN(CC([O-])=O)CC([O-])=O)C(O)=C(C(C)C)C=2)C)=C1C DIZZDZCUMBBRSG-UHFFFAOYSA-J 0.000 claims abstract description 36
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 34
- 229920001429 chelating resin Polymers 0.000 claims abstract description 31
- 239000006096 absorbing agent Substances 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims description 73
- 229920000742 Cotton Polymers 0.000 claims description 52
- 239000007788 liquid Substances 0.000 claims description 23
- 125000003396 thiol group Chemical group [H]S* 0.000 claims description 19
- 239000011521 glass Substances 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 235000003140 Panax quinquefolius Nutrition 0.000 claims 1
- 240000005373 Panax quinquefolius Species 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 21
- 239000011259 mixed solution Substances 0.000 abstract description 18
- RVPVRDXYQKGNMQ-UHFFFAOYSA-N lead(2+) Chemical compound [Pb+2] RVPVRDXYQKGNMQ-UHFFFAOYSA-N 0.000 abstract description 15
- 239000000243 solution Substances 0.000 abstract description 15
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract description 14
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract description 14
- 230000008859 change Effects 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 10
- 239000011780 sodium chloride Substances 0.000 abstract description 7
- 239000000356 contaminant Substances 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000012154 double-distilled water Substances 0.000 description 6
- CWERGRDVMFNCDR-UHFFFAOYSA-N thioglycolic acid Chemical compound OC(=O)CS CWERGRDVMFNCDR-UHFFFAOYSA-N 0.000 description 6
- 239000003957 anion exchange resin Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- JWUJQDFVADABEY-UHFFFAOYSA-N 2-methyltetrahydrofuran Chemical class CC1CCCO1 JWUJQDFVADABEY-UHFFFAOYSA-N 0.000 description 3
- 206010027439 Metal poisoning Diseases 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 208000008127 lead poisoning Diseases 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 206010010774 Constipation Diseases 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 241001062009 Indigofera Species 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 208000034189 Sclerosis Diseases 0.000 description 1
- 208000013738 Sleep Initiation and Maintenance disease Diseases 0.000 description 1
- 206010041349 Somnolence Diseases 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 208000025371 Taste disease Diseases 0.000 description 1
- 208000025865 Ulcer Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 208000007502 anemia Diseases 0.000 description 1
- 230000004596 appetite loss Effects 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 210000005013 brain tissue Anatomy 0.000 description 1
- 230000002490 cerebral effect Effects 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
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- 238000011109 contamination Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 210000003754 fetus Anatomy 0.000 description 1
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- 231100000869 headache Toxicity 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
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- 206010022437 insomnia Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 235000021266 loss of appetite Nutrition 0.000 description 1
- 208000019017 loss of appetite Diseases 0.000 description 1
- 235000019656 metallic taste Nutrition 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000003169 placental effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 238000009288 screen filtration Methods 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- PRZSXZWFJHEZBJ-UHFFFAOYSA-N thymol blue Chemical compound C1=C(O)C(C(C)C)=CC(C2(C3=CC=CC=C3S(=O)(=O)O2)C=2C(=CC(O)=C(C(C)C)C=2)C)=C1C PRZSXZWFJHEZBJ-UHFFFAOYSA-N 0.000 description 1
- 231100000397 ulcer Toxicity 0.000 description 1
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
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- 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)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention propose in a kind of detection operating environment air whether leaded detection device, sampled in the particle that operation field absorbs certain volume air；The absorber for absorbing particle in sampling apparatus is rinsed using sulfuric acid and sodium chloride mixed solution, the mixed solution of entrained particles is flowed into collecting bottle, is dissolved in lead ion in mixed solution；By contaminant filter；Quantitative lead ion solution is instilled in methylthymol blue chelating resin solid detection agent；If color change bar occurs in methylthymol blue chelating resin solid detection agent, judge leaded in the air of operation field；If methylthymol blue chelating resin solid detection agent does not occur color change bar, judge in the air of operation field without lead.Therefore, the present invention smooth can fast implement the whole flow process of sampling and detection, reach and efficiently judge the whether leaded testing goal of operation field air, flexible operation is smooth, novel and reasonable structure, practical.
Description
Present patent application is the divisional application of Chinese Patent Application No. 2015102857593, the application number of original application
It is 2015102857593, the applying date is on May 29th, 2015, and a kind of entitled simply detect in operating environment air is
No leaded method and detection device.
Technical field
Whether the present invention relates to the detection device fields of Lead in Air, and in particular to contain in a kind of detection operating environment air
The detection device of lead.
Background technique
It is detrimental to health in the chief-criminal with children's intelligence numerous now, lead is harm no small one.It is adjusted according to authority
It looks into report to reveal, 500 times of ancients before the intracorporal average lead tolerance of modern has substantially exceeded 1000！And the mankind lack master
Dynamic, effective safeguard procedures.According to investigations, average lead tolerance is generally higher than young man in many children's bodies now；Traffic-police is again
The people of more other industries is deeper by lead poisoning evil.After lead enters human body, in addition to part is by excrement, sweat excretion, remaining is several small
When after dissolve in blood, hinder the synthesis of blood, lead to human body anaemia, headache, dizziness, out of strength, sleepy, constipation and limbs occur
Ache；There is metallic taste in some mouths, the symptoms such as artery sclerosis, digestive tract ulcer and fundus hemorrhage are also related with lead contamination.It is small
Then there is hypoevolutism, loss of appetite, inconvenient walking and constipation, insomnia in child's lead poisoning；If pupil, also with moving more, listen
Phenomena such as feeling obstacle, absent minded, feeblemindedness.This is because lead, which enters after human body, invades cerebral nerve group by blood
It knits, keeps nutriment and oxygen supply insufficient, caused by causing brain tissue impairment, serious person may cause permanent disbility.Especially
Children are in growth and development stage, and to lead ratio, adult is more sensitive, have very strong affinity to nervous system into intracorporal lead,
Therefore it is several times higher than adult to the uptake of lead, it is aggrieved to be particularly acute.Lead by placental barrier into can then be influenced in pregnant woman's body
Development of fetus causes deformity etc..Be effectively prevented lead poisoning, be current scientist exploring, one of the project captured.As
Individual reinforces prevention, carries out self-protection to be highly important, but is impossible to guard against in many cases, such as in workshop
Equal operation fields, especially lead storage battery workshop, lead can be floated with various forms such as compounds in air, under long-term
Come, great threat can be caused to the health of worker, however is but detected without practicable operation field on existing market
Method, this problem are urgently to be resolved.
In consideration of it, inventor furthers investigate the above problem, there is this case generation then.
Summary of the invention
The purpose of the present invention is to provide the whole flow process that one kind smooth can fast implement sampling and detection, reach and efficiently sentence
The whether leaded testing goal of disconnected operation field air, flexible operation is smooth, novel and reasonable structure, practical detection operation
In surrounding air whether leaded detection device.
In order to achieve the above object, the present invention uses such technical solution:
In a kind of detection operating environment air whether leaded detection device, including sampling apparatus, be connected to sampling apparatus
The collecting bottle of lower section and the detection device below collecting bottle；
The sampling apparatus include sampling apparatus main body, be connected to sampling apparatus main body outlet side air pump and be set to gas
Gas flowmeter in the air inlet pipe of pump；The sampling apparatus main body successively includes tube body, absorbent cotton silk screen and dress from outside to inside
The outlet side block of Sulfhydryl Cotton absorber in absorbent cotton silk screen, the tube body has copper mesh layers；The both ends of the tube body it
Between be equipped with the inlet tube that upwardly extends, the inlet tube is equipped with lid；The inlet end of the tube body is equipped with first end cover, out
Gas end is equipped with second end cover；The circumferential surface of the inlet end of the tube body is formed with the first external screw thread, and the first end cover is formed with
The first internal screw thread to match with first external screw thread；The circumferential surface of the outlet side of the tube body is formed with the second external screw thread, institute
It states second end cover and is formed with the second internal screw thread to match with second external screw thread；
The collecting bottle includes collecting bottle main body, the communicating pipe being connected between collecting bottle main body and the tube body, is connected to
In collecting bottle lower body part and the liquid outlet faucet of liquid out corresponding with the detection device and it is connected to collecting bottle body top simultaneously
The exhaust pipe extended upward, the upper port gear of the communicating pipe are equipped with filter screen, and the exhaust pipe is equipped with lid, the liquid out
Faucet is equipped with switch；
The detection device includes glass tube, the methylthymol blue chelating resin solid being installed in glass tube detection
Agent and two are plugged in the absorbent cotton that methylthymol blue chelating resin solid detection agent both ends are positioned, the glass respectively
The upper port of glass pipe is corresponding with the liquid outlet of liquid faucet out.
The inlet end circumferential surface of above-mentioned tubular body is equipped in the first sealing between above-mentioned first external screw thread and the second external screw thread
Ring, the medial surface of the first end cover is formed with the first thin diameter section close to base and the first wide section close to lid mouth, described
It is formed with the first sealing station terrace mutually supported with first sealing ring between first thin diameter section and the first wide section, described
One sealing station terrace is the circular cone inclined-plane being tapered by lid mouth to base direction；First internal screw thread is formed in described first
Thin diameter section；
The outlet side circumferential surface of the tube body is equipped in the second sealing between second external screw thread and the first external screw thread
Ring, the medial surface of the second end cover is formed with the second thin diameter section close to base and the second wide section close to lid mouth, described
It is formed with the second sealing station terrace mutually supported with second sealing ring between second thin diameter section and the second wide section, described
Two sealing station terraces are the circular cone inclined-plane being tapered by lid mouth to base direction；Second internal screw thread is formed in described second
Thin diameter section；
The air inlet of the air inlet pipe of the air pump is formed with the third internal screw thread to match with second external screw thread, described
The medial surface of air inlet pipe is formed with the third thin diameter section far from the second sealing ring and the third wide section close to the second sealing ring,
The third sealing station terrace mutually supported with second sealing ring, institute are formed between the third thin diameter section and third wide section
Stating third sealing station terrace is the circular cone inclined-plane by air inlet taper inward；The third internal screw thread is formed in the third
Thin diameter section.
The cross section on above-mentioned circular cone inclined-plane is indent camber line.
After adopting the above technical scheme, in detection operating environment air of the invention whether leaded detection device, when adopting
When sampling device main body does not work, first end cover and second end cover can be screwed onto the both ends of tube body, realize first end cover and the
Two end caps cover the sealing of tube body, reach effective sealing to Sulfhydryl Cotton absorber, guarantee that sample absorbs workspace and working
Preceding validity, and absorb the index stability after sample.When sampling apparatus body of work, by first end cover and second end
Lid removes, and makes the both ends open of tube body, and the air inlet pipe of air pump is connected to the outlet side of tube body, realizes air inlet pipe and tube body
Sealed connection, and then air pump can be opened and bypass air through tube body and pass through Sulfhydryl Cotton absorber, Sulfhydryl Cotton absorber is by air-flow
In leaded particle absorption sampled, gas flowmeter calculates the volume of air-flow, be convenient for subsequent statistical.When sampling terminates
Afterwards, the sodium chloride mixed solution that the sulfuric acid and concentration for being 50-80g/L with concentration are 120-150g/L pours into tube body by inlet tube
It is interior, Sulfhydryl Cotton absorber is rinsed through absorbent cotton silk screen, the particle that Sulfhydryl Cotton absorber adsorbs is rinsed out, and dissolves
In mixed solution, then by filter screen filtration after, along communicating pipe flow into collecting bottle main body along, open exhaust pipe can be convenient for solution
It flows into collecting bottle main body, after reaching a certain amount of, turns on the switch, flow out mixed solution gradually by going out liquid faucet, by glass tube
Upper port instill the methylthymol blue chelating resin solid detection agent of detection device, if methylthymol blue chelating resin is solid
There is color change bar (blue) in body detection agent, then judges leaded in the air of operation field；If methylthymol blue chelating resin is solid
Body detection agent 302 does not occur color change bar, then judges in the air of operation field without lead.In the actual operation process, in operation
The air of certain volume by sampling apparatus, is absorbed the particle in air using sampling apparatus and is sampled by scene；Using dense
Suction of the sodium chloride mixed solution that the sulfuric acid and concentration that degree is 50-80g/L are 120-150g/L to particle is absorbed in sampling apparatus
Acceptor is rinsed, and is flowed into the mixed solution of entrained particles in collecting bottle, is dissolved in lead ion in mixed solution；By impurity
Filtering, prepares pure lead ion solution；Quantitatively above-mentioned lead ion solution is from top to bottom instilled in the methyl hundred of sufficient length
In phenol indigo plant chelating resin solid detection agent；If color change bar occurs in methylthymol blue chelating resin solid detection agent, judge to make
It is leaded in the air at industry scene；If methylthymol blue chelating resin solid detection agent does not occur color change bar, judge that operation is existing
Lead is free of in the air of field.Compared with prior art, in detection operating environment air of the invention whether leaded detection device,
Its whole flow process that smooth can fast implement sampling and detection reaches and efficiently judges the whether leaded detection mesh of operation field air
, flexible operation is smooth, novel and reasonable structure, practical.
Detailed description of the invention
Fig. 1 is easy structure schematic diagram of the invention；
Fig. 2 is the schematic cross-sectional view of sampling apparatus first state；
Fig. 3 is the schematic cross-sectional view of the second state of sampling apparatus.
In figure:
1- sampling apparatus main body 11- tube body
111- copper mesh layers 112- first end cover
1121- the first internal screw thread the first thin diameter section of 1122-
1123- the first wide section 1124- the first sealing station terrace
113- second end cover the second internal screw thread of 1131-
1132- the second thin diameter section the second wide section of 1133-
1134- the second sealing station terrace the first external screw thread of 114-
115- the second external screw thread the first sealing ring of 116-
117- the second sealing ring 118- inlet tube
12- absorbent cotton silk screen
13- Sulfhydryl Cotton absorber
2- air pump 21- air inlet pipe
211- third internal screw thread 212- third thin diameter section
213- third wide section 214- third sealing station terrace
3- gas flowmeter
20- collecting bottle 201- collecting bottle main body
202- communicating pipe 2021- filter screen
203- goes out liquid faucet 2031- switch
204- exhaust pipe
30- detection device 301- glass tube
302- methylthymol blue chelating resin solid detection agent
303- absorbent cotton.
Specific embodiment
In order to further explain the technical solution of the present invention, being described in detail below by specific embodiment.
In the simple detection operating environment air of one kind of the invention whether leaded method.
Embodiment one, includes the following steps:
(1) 1 cubic metre of air is passed through into sampling apparatus in operation field, sampling apparatus is utilized to absorb the particle in air
It is sampled；
(2) use concentration for the sulfuric acid of 50g/L and concentration be 120g/L sodium chloride mixed solution to being inhaled in sampling apparatus
The absorber for receiving particle is rinsed, and flows into the mixed solution of entrained particles in collecting bottle, so that lead ion is dissolved in mixing molten
In liquid；
(3) in order to avoid contaminant filter is prepared pure lead ion solution by the influence of impurity；
(4) in order to guarantee reaction validity and intuitive, and convenient for measurement, by the above-mentioned lead ion solution of 2ml by up to
In the lower methylthymol blue chelating resin solid detection agent for instilling 100mm long；
(5) if color change bar (blue) occurs in methylthymol blue chelating resin solid detection agent, judge operation field
It is leaded in air；If methylthymol blue chelating resin solid detection agent does not occur color change bar, the air of operation field is judged
In be free of lead.
Embodiment two, includes the following steps:
(1) 1.5 cubic metres of air is passed through into sampling apparatus in operation field, is absorbed using sampling apparatus micro- in air
Grain is sampled；
(2) use concentration for the sulfuric acid of 65g/L and concentration be 135g/L sodium chloride mixed solution to being inhaled in sampling apparatus
The absorber for receiving particle is rinsed, and flows into the mixed solution of entrained particles in collecting bottle, so that lead ion is dissolved in mixing molten
In liquid；
(3) in order to avoid contaminant filter is prepared pure lead ion solution by the influence of impurity；
(4) in order to guarantee reaction validity and intuitive, and convenient for measurement, by the above-mentioned lead ion solution of 2ml by up to
In the lower methylthymol blue chelating resin solid detection agent for instilling 105mm long；
(5) if color change bar (blue) occurs in methylthymol blue chelating resin solid detection agent, judge operation field
It is leaded in air；If methylthymol blue chelating resin solid detection agent does not occur color change bar, the air of operation field is judged
In be free of lead.
Embodiment three, includes the following steps:
(1) 2 cubic metres of air is passed through into sampling apparatus in operation field, sampling apparatus is utilized to absorb the particle in air
It is sampled；
(2) use concentration for the sulfuric acid of 80g/L and concentration be 150g/L sodium chloride mixed solution to being inhaled in sampling apparatus
The absorber for receiving particle is rinsed, and flows into the mixed solution of entrained particles in collecting bottle, so that lead ion is dissolved in mixing molten
In liquid；
(3) in order to avoid contaminant filter is prepared pure lead ion solution by the influence of impurity；
(4) in order to guarantee reaction validity and intuitive, and convenient for measurement, by the above-mentioned lead ion solution of 2ml by up to
In the lower methylthymol blue chelating resin solid detection agent for instilling 110mm long；
(5) if color change bar (blue) occurs in methylthymol blue chelating resin solid detection agent, judge operation field
It is leaded in air；If methylthymol blue chelating resin solid detection agent does not occur color change bar, the air of operation field is judged
In be free of lead.
Above-mentioned absorber is prepared,
Example IV:
S1: sequentially adding thioglycolic acid, 2- methyl-tetrahydro furans and hydrosulphuric acid according to volume ratio 9:9:1 in beaker,
It adds water to be uniformly mixed and mixed liquor is made；
S2: above-mentioned mixed liquor is cooled to 20 DEG C；
S3: cooling above-mentioned mixed liquor is poured into the brown, wide-mouth bottle equipped with absorbent cotton, absorbent cotton is impregnated, and covers
Sealing；
S4: above-mentioned brown, wide-mouth bottle is placed in 35 DEG C of thermostatted water to the water-bath carried out 100 hours；
S5: above-mentioned brown, wide-mouth bottle is taken out, and absorbent cotton is laid in the bottle,suction of two layers of Medium speed filter paper；
S6: being rinsed above-mentioned absorbent cotton with deionized water, until flushing liquor is neutrality；
S7: above-mentioned absorbent cotton being placed at 40 DEG C and is dried, and absorbent cotton is made to have adsorptivity and chemistry to leaded particle etc.
Stability obtains Sulfhydryl Cotton.
Embodiment five:
S1: in beaker according to volume ratio 12:10.5:1.5 sequentially add thioglycolic acid, 2- methyl-tetrahydro furans and
Hydrosulphuric acid, add water be uniformly mixed mixed liquor is made；
S2: above-mentioned mixed liquor is cooled to 22.5 DEG C；
S3: cooling above-mentioned mixed liquor is poured into the brown, wide-mouth bottle equipped with absorbent cotton, absorbent cotton is impregnated, and covers
Sealing；
S4: above-mentioned brown, wide-mouth bottle is placed in 37.5 DEG C of thermostatted water to the water-bath carried out 135 hours；
S5: above-mentioned brown, wide-mouth bottle is taken out, and absorbent cotton is laid in the bottle,suction of two layers of Medium speed filter paper；
S6: being rinsed above-mentioned absorbent cotton with deionized water, until flushing liquor is neutrality；
S7: above-mentioned absorbent cotton is placed at 42.5 DEG C and is dried.
Embodiment six:
S1: thioglycolic acid, 2- methyl-tetrahydro furans and hydrogen sulphur are sequentially added according to volume ratio 15:12:2 in beaker
Acid, add water be uniformly mixed mixed liquor is made；
S2: above-mentioned mixed liquor is cooled to 25 DEG C；
S3: cooling above-mentioned mixed liquor is poured into the brown, wide-mouth bottle equipped with absorbent cotton, absorbent cotton is impregnated, and covers
Sealing；
S4: above-mentioned brown, wide-mouth bottle is placed in 40 DEG C of thermostatted water to the water-bath carried out 170 hours；
S5: above-mentioned brown, wide-mouth bottle is taken out, and absorbent cotton is laid in the bottle,suction of two layers of Medium speed filter paper；
S6: being rinsed above-mentioned absorbent cotton with deionized water, until flushing liquor is neutrality；
S7: above-mentioned absorbent cotton is placed at 45 DEG C and is dried.
Above-mentioned methylthymol blue chelating resin solid detection agent is by strong basic anion-exchange resin and methylthymol blue
It is synthesized according to weight ratio 1:1；Or it is synthesized according to weight ratio 1:1.5；Or according to weight ratio 1:2 synthesize, can make in this way highly basic yin from
Sub-exchange resin and methylthymol blue highly effective chelating.
Above-mentioned methylthymol blue chelating resin solid detection agent is made in accordance with the following steps:
Embodiment seven:
A1: above-mentioned strong basic anion-exchange resin is mixed with double distilled water, with 75 revolutions per seconds of speed in room temperature water-bath
Stirring 6 minutes；
A2: above-mentioned methylthymol blue is added, and is stirred 25 minutes in room temperature water-bath with 75 revolutions per seconds of speed；
A3: being filtered, and the solid portion of chelating is filtered out；
A4: it is rinsed 9 seconds with double distilled water.
Embodiment eight:
A1: above-mentioned strong basic anion-exchange resin is mixed with double distilled water, with 77 revolutions per seconds of speed in room temperature water-bath
Stirring 5.5 minutes；
A2: above-mentioned methylthymol blue is added, and is stirred 22.5 minutes in room temperature water-bath with 77 revolutions per seconds of speed；
A3: being filtered, and the solid portion of chelating is filtered out；
A4: it is rinsed 12 seconds with double distilled water.
Embodiment nine:
A1: above-mentioned strong basic anion-exchange resin is mixed with double distilled water, with 80 revolutions per seconds of speed in room temperature water-bath
Stirring 5 minutes；
A2: above-mentioned methylthymol blue is added, and is stirred 20 minutes in room temperature water-bath with 80 revolutions per seconds of speed；
A3: being filtered, and the solid portion of chelating is filtered out；
A4: it is rinsed 15 seconds with double distilled water.
In above-mentioned steps (5), take above-mentioned methylthymol blue chelating resin solid detection agent length be 100mm,
105mm or 110mm, weight 150-165mg, is put into glass tube, and top and bottom absorbent cotton, which blocks, to be positioned and limit first
The length of base thymol blue chelating resin solid detection agent；Take above-mentioned lead ion solution 2.5ml, 2.7ml or 3ml.
A kind of detection device of the invention, as shown in Figure 1-3, include sampling apparatus 1, be connected to 1 lower section of sampling apparatus
Collecting bottle 20 and the detection device 30 below collecting bottle 20；
Sampling apparatus 1 is including sampling apparatus main body 1, the air pump 2 for the outlet side for being connected to sampling apparatus main body 1 and set on gas
Gas flowmeter 3 in the air inlet pipe 21 of pump 2；Sampling apparatus main body 1 successively includes tube body 11, absorbent cotton silk screen 12 from outside to inside
Outlet side block with the Sulfhydryl Cotton absorber 13 being installed in absorbent cotton silk screen 12, tube body 11 has copper mesh layers 111, copper mesh layers
111 can position absorbent cotton silk screen 12 and internal Sulfhydryl Cotton absorber 13, particularly avoid under the blowing force of air-flow to gas
Pump 2 moves；The inlet tube 118 upwardly extended is equipped between the both ends of tube body 11, inlet tube 118 is equipped with lid, this lid
Son can be opened if necessary；The inlet end of tube body 11 is equipped with first end cover 112, and outlet side is equipped with second end cover 113；Tube body
The circumferential surface of 11 inlet end is formed with the first external screw thread 114, and first end cover 112 is formed with to match with the first external screw thread 114
First internal screw thread 1121, first end cover 112 can rely on the cooperation of the first external screw thread 114 and the first internal screw thread 1121, realize and manage
11 inlet end of body is spirally connected；The circumferential surface of the outlet side of tube body 11 is formed with the second external screw thread 115, second end cover 113 be formed with
The second internal screw thread 1131 that second external screw thread 115 matches, second end cover 113 can be by spiral shells in the second external screw thread 115 and second
The cooperation of line 1131, realization are spirally connected with 11 outlet side of tube body；
Collecting bottle 20 include collecting bottle main body 201, be connected between collecting bottle main body 201 and tube body 11 communicating pipe 202,
It is connected to 201 lower part of collecting bottle main body and liquid outlet is corresponding with detection device 30 goes out liquid faucet 203 and to be connected to collecting bottle master
The upper port gear of 201 top of body and the exhaust pipe 204 extended upward, communicating pipe 202 is equipped with filter screen 2021, and filter screen 2021 can
The liquid flowed down is filtered, exhaust pipe 204 is equipped with lid, this lid can be opened if necessary, and liquid faucet 203 is arranged out
There is switch 2031, operating this switch 2031 can make the solution in collecting bottle 20 flow out to detection device 30 from liquid faucet 203 out
On, or liquid faucet 203 will be gone out and closed；
Detection device 30 includes glass tube 301, the methylthymol blue chelating resin solid being installed in glass tube 301 inspection
It surveys agent 302 and two is plugged in the absorbent cotton that 302 both ends of methylthymol blue chelating resin solid detection agent are positioned respectively
303, the upper port of glass tube 301 is corresponding with the liquid outlet of liquid faucet 203 out.The present invention in actual use, works as sampling
When apparatus main body 1 does not work, first end cover 112 and second end cover 113 can be screwed onto the both ends of tube body 11, realized first end
Lid 112 and second end cover 113 cover the sealing of tube body 11, reach effective sealing to Sulfhydryl Cotton absorber 13, guarantee sample
Validity of the workspace before work is absorbed, and absorbs the index stability after sample.When sampling apparatus main body 1 works,
First end cover 112 and second end cover 113 are removed, make the both ends open of tube body 11, and the air inlet pipe of air pump 2 21 is connected to pipe
It realizes the sealed connection of air inlet pipe 21 and tube body 11, and then air pump 2 can be opened and bypass air through tube body 11 in the outlet side of body 11
And passing through Sulfhydryl Cotton absorber 13, Sulfhydryl Cotton absorber 13 samples the leaded particle absorption in air-flow, gas flowmeter 3
The volume of air-flow is calculated, subsequent statistical is convenient for.After sampling, the sulfuric acid and concentration for being 50-80g/L with concentration are 120-
The sodium chloride mixed solution of 150g/L is poured into tube body 11 by inlet tube 118, through absorbent cotton silk screen 12 to Sulfhydryl Cotton absorber
13 are rinsed, and the particle that Sulfhydryl Cotton absorber 13 adsorbs are rinsed out, and is dissolved in mixed solution, then by filter screen
It after 2021 filterings, is flowed into collecting bottle main body 201 along communicating pipe 202, collecting bottle master can be flowed into convenient for solution by opening exhaust pipe 204
In body 201, after reaching a certain amount of, 2031 are turned on the switch, flows out mixed solution gradually by going out liquid faucet 203, by glass tube 301
Upper port instill detection device 30 methylthymol blue chelating resin solid detection agent 302, if methylthymol blue chelate
There is color change bar (blue) in resin solid detection agent 302, then judges leaded in the air of operation field；If methylthymol blue chela
Resin solid detection agent 302 does not occur color change bar, then judges in the air of operation field without lead.
In order to implement the Hermetical connecting structure of tube body 11 Yu other component, it is preferable that the inlet end circumferential surface of tube body 11
Equipped in the first sealing ring 116 between the first external screw thread 114 and the second external screw thread 115, the medial surface shape of first end cover 112
At the first thin diameter section 1122 for having close base and close to the first wide section 1123 of lid mouth, the first thin diameter section 1122 and first
The the first sealing station terrace 1124 supported with 116 phase of the first sealing ring, the first sealing station terrace are formed between wide section 1123
1124 be the circular cone inclined-plane being tapered by lid mouth to base direction；First internal screw thread 1121 is formed in the first thin diameter section 1122；
The outlet side circumferential surface of tube body 11 is equipped in the second sealing between the second external screw thread 115 and the first external screw thread 114
Ring 117, the medial surface of second end cover 113 are formed with the second thin diameter section 1132 close to base and the second particle size close to lid mouth
Section 1133, be formed between the second thin diameter section 1132 and the second wide section 1133 supported with 117 phase of the second sealing ring it is second close
Step surface 1134 is sealed, the second sealing station terrace 1134 is the circular cone inclined-plane being tapered by lid mouth to base direction；Spiral shell in second
Line 1131 is formed in the second thin diameter section 1132；
The air inlet of the air inlet pipe 21 of air pump 2 is formed with the third internal screw thread 211 to match with the second external screw thread 115, into
Tracheae 21 can rely on the cooperation of the second external screw thread 115 and third internal screw thread 211, and realization is spirally connected with 11 outlet side of tube body；Air inlet
The medial surface of pipe 21 is formed with the third thin diameter section 212 far from the second sealing ring 117 and the third close to the second sealing ring 117
It is close to be formed with the third supported with 117 phase of the second sealing ring for wide section 213 between third thin diameter section 212 and third wide section 213
Step surface 214 is sealed, third sealing station terrace 214 is the circular cone inclined-plane by air inlet taper inward；211 shape of third internal screw thread
At in third thin diameter section 212.In this way, the present invention is in actual use, it, can be by when sampling apparatus main body 1 does not work
One end cap 112 and second end cover 113 are screwed onto the both ends of tube body 11, and pass through the first sealing station terrace 1124 of cone and the
Two sealing station terraces 1134 are supported respectively on the first sealing ring 116 and the second sealing ring 117, and are utilized first end cover 112
Gradually precession with second end cover 113 and gradually compress, realize first end cover 112 and second end cover 113 to the close of tube body 11
Envelope capping, reaches effective sealing to Sulfhydryl Cotton absorber 13, guarantees that sample absorbs validity of the workspace before work, and
Index stability after absorbing sample.When sampling apparatus main body 1 works, first end cover 112 and second end cover 113 are removed,
Make the both ends open of tube body 11, and the air inlet pipe of air pump 2 21 is screwed onto the outlet side of tube body 11, the third by cone is close
Envelope step surface 214 is supported on the second sealing ring 117, and is gradually compressed using the gradually precession of air inlet pipe 21, and realization will be into
The sealed connection of tracheae 21 and tube body 11, and then air pump 2 can be opened and bypass air through tube body 11 and pass through Sulfhydryl Cotton absorber 13,
Sulfhydryl Cotton absorber 13 samples the leaded particle absorption in air-flow, and gas flowmeter 3 calculates the volume of air-flow, is convenient for
Subsequent statistical.Specific structure can be to be formed with to fix the first sealing ring 116 and the second sealing ring 117 on the circumferential surface of tube body 11
Annular groove.Air inlet pipe 21 is to be rotatably connected with the main part of air pump 2, and then convenient for being spirally connected with tube body 11.
In order to increase the first sealing station terrace 1124, the second sealing station terrace 1134 and third sealing station terrace 214 and
The mutual cooperation degree of one sealing ring 116 and the second sealing ring 117 increases contact area, and then enhances sealing performance, preferably
Ground, the cross of the first sealing station terrace 1124 of circular cone bevel-faced form, the second sealing station terrace 1134 and third sealing station terrace 214
Section is indent camber line.I.e. circular cone inclined-plane and the first sealing ring 116 and the second sealing ring 117 can form compression relationship flexible.
In simple detection operating environment air of the invention whether leaded method, the both ends of glass tube have been separately equipped with close
Capping can carry out effective protection to methylthymol blue chelating resin solid detection agent, it is ensured that methylthymol blue chelating tree
The validity and stability of rouge solid detection agent；The concrete form on circular cone inclined-plane can also be adjusted and set according to actual requirement
Meter；First sealing ring and the second sealing ring are preferably rubber material, concrete form and material etc. can according to actual requirement into
Row adjustment and design；First internal screw thread, the second internal screw thread, third internal screw thread, the first external screw thread, the second external screw thread, the first sealing
Step surface, the second sealing station terrace, third sealing station terrace, the first thin diameter section, the first wide section, the second thin diameter section, second are slightly
Diameter section and first end cover, second end cover, copper mesh layers, air inlet pipe, tube body, absorbent cotton silk screen, Sulfhydryl Cotton absorber, air pump are gentle
Concrete form, setting position of flowmeter body etc. can be adjusted and design according to actual requirement.
Product form of the invention is not limited to this case diagram and embodiment, anyone carries out the appropriate of similar thinking to it
Changes or modifications all should be regarded as not departing from patent category of the invention.
Claims (3)
1. in a kind of detection operating environment air whether leaded detection device, it is characterised in that: including sampling apparatus, be connected to
Collecting bottle below sampling apparatus and the detection device below collecting bottle；
The sampling apparatus include sampling apparatus main body, be connected to sampling apparatus main body outlet side air pump and set on air pump
Gas flowmeter in air inlet pipe；The sampling apparatus main body successively includes tube body, absorbent cotton silk screen and is installed in from outside to inside
The outlet side block of Sulfhydryl Cotton absorber in absorbent cotton silk screen, the tube body has copper mesh layers；It is set between the both ends of the tube body
There is the inlet tube upwardly extended, the inlet tube is equipped with lid；The inlet end of the tube body is equipped with first end cover, outlet side
It is equipped with second end cover；The circumferential surface of the inlet end of the tube body is formed with the first external screw thread, and the first end cover is formed with and institute
State the first internal screw thread that the first external screw thread matches；The circumferential surface of the outlet side of the tube body is formed with the second external screw thread, and described
Two end caps are formed with the second internal screw thread to match with second external screw thread；
The collecting bottle includes collecting bottle main body, the communicating pipe being connected between collecting bottle main body and the tube body, is connected to Sheng
Bottling lower body part and liquid outlet it is corresponding with the detection device go out liquid it is leading and be connected to collecting bottle body top and upward
The exhaust pipe of extension；
The detection device include glass tube, the methylthymol blue chelating resin solid detection agent being installed in glass tube and
Two are plugged in the absorbent cotton that methylthymol blue chelating resin solid detection agent both ends are positioned respectively, the glass tube
Upper port is corresponding with the liquid outlet of liquid faucet out.
2. in a kind of detection operating environment air according to claim 1 whether leaded detection device, it is characterised in that:
The inlet end circumferential surface of above-mentioned tubular body is equipped in the first sealing ring between above-mentioned first external screw thread and the second external screw thread, and described the
The medial surface of one end cap is formed with the first thin diameter section close to base and the first wide section close to lid mouth, first thin footpath
The the first sealing station terrace mutually supported with first sealing ring, first sealing station are formed between section and the first wide section
Terrace is the circular cone inclined-plane being tapered by lid mouth to base direction；First internal screw thread is formed in first thin diameter section；
The outlet side circumferential surface of the tube body is equipped in the second sealing ring between second external screw thread and the first external screw thread, institute
State second end cover medial surface be formed with close to base the second thin diameter section and close to lid mouth the second wide section, described second
The the second sealing station terrace mutually supported with second sealing ring is formed between thin diameter section and the second wide section, described second is close
Sealing step surface is the circular cone inclined-plane being tapered by lid mouth to base direction；Second internal screw thread is formed in second thin footpath
Section；
The air inlet of the air inlet pipe of the air pump is formed with the third internal screw thread to match with second external screw thread, the air inlet
The medial surface of pipe is formed with the third thin diameter section far from the second sealing ring and the third wide section close to the second sealing ring, described
It is formed with the third sealing station terrace mutually supported with second sealing ring between third thin diameter section and third wide section, described
Three sealing station terraces are the circular cone inclined-plane by air inlet taper inward；The third internal screw thread is formed in the third thin footpath
Section.
3. in a kind of detection operating environment air according to claim 2 whether leaded detection device, it is characterised in that:
The cross section on above-mentioned circular cone inclined-plane is indent camber line.
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| CN106990103A (en) | 2017-07-28 |
| CN104931490B (en) | 2017-07-25 |
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