CN104297362A - Adsorbent tube for determining content of organic gases and steam in air, and its making method - Google Patents
Adsorbent tube for determining content of organic gases and steam in air, and its making method Download PDFInfo
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- CN104297362A CN104297362A CN201410449921.6A CN201410449921A CN104297362A CN 104297362 A CN104297362 A CN 104297362A CN 201410449921 A CN201410449921 A CN 201410449921A CN 104297362 A CN104297362 A CN 104297362A
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Abstract
The invention relates to an adsorbent tube for determining the content of organic gases and steam in air, and its making method, and belongs to the field of air detection. The method mainly comprises the following steps: sequentially filling or injecting supporting iron wires, block cotton, a solid adsorbent protection layer, a solid adsorbent-containing standard substance layer, a standard substance, the solid adsorbent protection layer, the block cotton and the supporting iron wires into a clean glass tube with one sealed end in a closed filling box in low nitrogen environment, and carrying out rapid hot stretching on the glass tube in the nitrogen environment to carry out a sealing operation; and removing the filing box after the solid adsorbent tube is cooled. Compared with adsorbent tubes in the prior art, the adsorbent tube provided by the invention has the advantages of wide application range, simultaneous meeting of onsite detection and laboratory detection requirements, low technical requirements on operators, medicine saving, reduction of the poisoning risk of experimental personnel, good experiment reproducibility, and no experiment environment restriction.
Description
Technical field
The invention belongs to air detection field, particularly a kind ofly measure sorbent tubes of organic gas and steam and preparation method thereof.
Background technology
Present stage, in ambient atmosphere, the acquisition mode of organic gas and steam mainly contains three kinds, the pump-free type sampling undertaken having pump-type to sample by solid adsorbent or liquid absorbent, being undertaken by pump-free type samplers, the container sampling undertaken by syringe and gas production bag.Solid adsorbent has pump-type sampling method because its applicable organism kinds is many, sampling T.T. flexibly controlled, sample is easy to carry and the storage time is long etc., and advantage is most widely used.
Solid adsorbent has pump-type sampling method to be mainly the air sample of suction filtration certain volume, the organic gas in air and steam is trapped in solid adsorbent.Solid adsorbent mainly contains activated charcoal, silica gel, the how empty microballoon of macromolecule etc., sample determination many employings vapor-phase chromatography, the method needs to carry out the solvent analysis or Thermal desorption at experiment pretreatment stage to solid adsorbent, is transferred to by organism in solution or air and measures.
In solid adsorbent organic content detection in, conventional quantivative approach is calibration curve method, and method, using the organic solution of the variable concentrations directly prepared as typical curve each point drawing standard curve, measures sample concentration with this typical curve.Experiment value is deducted after the blank or reagent blank of sample blank, experiment as testing result.The detection method of the standards such as existing People's Republic of China (PRC) Occupational health examination criteria all adopts the method.Experimenter is carrying out needing in sample resolving to carry out sequence of operations, comprises the pre-treatment step such as the cutting of solid adsorbent tube wall, solid adsorbent transfer, the solvent analysis or Thermal desorption, solution constant volume or gas collection.And total step is less when configuration standard curve, only need quantitative draw standard solution and constant volume.Compare, testing sample pre-treatment step is many compared with typical curve configuration step.Major part organism has stronger volatility, and the many losses that can increase the test substance of sample of more pre-treatment step, affect the accuracy of result.
In addition, all there is certain adsorbability to test substance in all kinds of solid adsorbent, the determinand total amount that absorption is residual in solid adsorbent and solid adsorbent kind, determinand physicochemical property, resolve site surrounding condition, desorbed solution total amount purity or resolve instrument efficiency, analysis mode, parsing time, experimenter's operation technique etc. relevant.The volatilization of the test substance in preprocessing process and residually treat that the test substance on solid adsorbent all causes detected value to be less than actual value, makes testing result produce distortion to a certain degree, cannot reflect the actual concentrations of test substance in surveyed area air.
Therefore, this area is needed badly and is wanted a kind of novel technical scheme to solve these problems.
Summary of the invention
Technical matters to be solved by this invention: for shortcomings and deficiencies of the prior art, the invention provides and a kind ofly measure sorbent tubes of organic gas and steam content in air and preparation method thereof.
The present invention is design like this: the sorbent tubes measuring organic gas and steam content in air, is characterized in that: comprise glass tube envelope, glass tube, support iron wire, intercept cotton, solid adsorbent protective seam, solid adsorbent containing standard substance layer; Described glass tube two ends are provided with glass tube envelope, and glass tube is disposed with solid adsorbent containing standard substance layer, solid adsorbent protective seam, obstruct cotton by centre to two ends; Described support iron wire is V-shaped, supports iron wire and runs through obstruct cotton.
Described glass tube is hard transparent glass pipe.
Described obstruct cotton is glass fiber or synthetic cotton, and intercepting cotton thickness is 1mm ~ 5mm.
The filling material that described solid adsorbent protective seam and solid adsorbent contain standard substance layer is activated charcoal, silica gel or porous polymer bead; Described solid adsorbent is the standard substance measuring organic gas or steam content containing the standard substance of standard substance layer.
Measure the sorbent tubes manufacture method of organic gas and steam content in air, it is characterized in that: comprise the steps,
Step one, hot-stretch device is utilized one end hot-stretch of glass tube to be closed, stand-by after cooling 3 seconds ~ 10 seconds;
Step 2, utilize gripper that glass tube is put into filling box, glass tube blind end is placed upward, vertically;
Step 3, pad device is utilized to fill in glass tube to intercept cotton, V-arrangement to support iron wire, solid adsorbent protective seam; The thickness of described obstruct cotton is 1mm ~ 5mm; The length of described support iron wire is 100mm ~ 300mm; The thickness of described solid adsorbent protective seam is 5mm ~ 20mm;
Step 4, solid adsorbent poured in lift funnel type vessel that low side closes, by injector head to solid adsorbent low-pressure fuel injection or topple over standard substance; Described low pressure is 0.1MPa ~ 0.5MPa;
Step 5, utilize mechanical arm to hover above glass tube by the funnel type vessel lower end mouth of pipe in step 4, open the switch of vessel lower end, make solid adsorbent enter glass tube;
Step 6, bobbing machine mechanical arm, reduce to support iron wire, obstruct cotton, solid adsorbent protective seam, solid adsorbent containing the gap between standard substance layer;
Step 7, utilize that pad device fills solid adsorbent protective seam in glass tube, V-arrangement supports iron wire, it is cotton to intercept; The thickness of described solid adsorbent protective seam is 5mm ~ 20mm; The length of described support iron wire is 100mm ~ 300mm; The thickness of described obstruct cotton is 1mm ~ 5mm;
Step 8, bobbing machine mechanical arm, reduce to support iron wire, obstruct cotton, solid adsorbent protective seam, solid adsorbent containing the gap between standard substance layer;
Step 9, utilize hot-stretch device one end hot-stretch of glass tube to be closed, after cooling 3 seconds ~ 10 seconds, take out filling box.
Glass tube in described step one needs cleaning, dry process before use; The length of described glass tube is (1.5 ~ 2) times of filling solid matter total length.
Filling box in described step 2 is enclosed construction, and inner filling high-purity nitrogen, be provided with refrigerating plant in filling box, control temperature scope is-200 DEG C ~ 0 DEG C.
Pad device in described step 3, step 7 needs cleaning, dry process before use.
The injection orifice of the funnel type vessel in described step 4 is lift, is propradation time standby, is decline state when spraying standard substance to solid adsorbent; Described injection orifice internal diameter is for solid adsorbent upper strata area in funnel 1/100 ~ 1/5.
The working temperature of described step 4 is-200 DEG C ~ 0 DEG C.
By above-mentioned design proposal, the present invention can bring following beneficial effect:
(1) the present invention measures the beneficial effect of organic gas and vapor sorbent pipe
1, improve experiment precision, accuracy and reappearance: greatly reduce the impact that environment, medicine and experimenter's operation technique produce experimental result, and improve the reappearance of experimental result greatly.
2, experimenter's collaborative work is convenient to, improve conventional efficient: require wide in range to the operant level of experimenter, accuracy and experimenter's gimmick of experimental result, test consuming time, experiment flow correlativity is low, be convenient to different experiments personnel and test in enormous quantities simultaneously.
3, be convenient to site work personnel and determine that rapidly sample concentration scope rationally determines field sample acquisition scheme, reasonable distribution manpower and material resources: according to national relevant laws, regulation, standard a nd norm specifies, cloth point mode and the quantity of layouting of spot sampling are relevant with tested substance concentration range, site work personnel by carry with, country's relevant laws, regulation, the adsorption tube of the concentration range boundary corresponding concentration that standard a nd norm specifies, by the sample concentration using portable instrument to compare detection site collection, can determine rapidly to layout and acquisition scheme, reasonable distribution manpower and material resources.
4, save medicine, reduce the possibility that experimenter is poisoning: organic chemicals has effumability, and most of organic chemicals has larger toxicity.Volatilize rapidly behind partial organic substances Kaifeng or be rapidly diluted pollution, causing a large amount of medicine to lose, the organism vapored away may cause acute or accumulation property infringement to experimenter.
(2) beneficial effect of sorbent tubes method for making of the present invention
1, automaticity is high, ensures the stability of adsorption tube end product quality, reduces the organic Exposure of operating personnel, reduces poisoning risk
Issuable cross pollution when 2, greatly reducing the filling adsorption tube of different organism
Injector head and filling case temperature when 3, determining filling according to melting point of organic matter, boiling point, at utmost reduce organism and to volatilize the impact brought under the prerequisite not affecting solution mobility.
4, under nitrogen environment, the filling gas medium that can ensure in adsorption tube is one-component nitrogen
5, organism of the present invention is seldom diffused into and intercepts in cotton and pipe in gas, gas phase portion and solid fraction stable components in solid absorbent tubes.
6, measure the methyl alcohol in silicone tube, in activated carbon tube, the experimental result display of normal hexane, higher with the typical curve sample recovery rate of solid absorbent tubes preparation, and closer to actual value.Measure the methyl alcohol in silicone tube with the typical curve of standard solution preparation, sample loss rate is up to 23.63%, and testing result cannot reflect actual value.
Accompanying drawing explanation
Illustrate that the invention will be further described with embodiment below in conjunction with accompanying drawing:
Fig. 1 is the structural representation that invention measures the sorbent tubes of organic gas and steam content in air.
It 1 be glass tube envelope, 2 is glass tube that figure comprises, 3 for support iron wire, 4 for intercept cotton, 5 be solid adsorbent protective seam, 6 contain standard substance layer for solid adsorbent.
Embodiment
The sorbent tubes of organic gas and steam content in mensuration air as shown in the figure, is characterized in that: comprise glass tube envelope 1, glass tube 2, support iron wire 3, intercept cotton 4, solid adsorbent protective seam 5, solid adsorbent containing standard substance layer 6; Described glass tube 2 two ends are provided with glass tube envelope 1, and glass tube 2 inside is disposed with solid adsorbent containing standard substance layer 6, solid adsorbent protective seam 5, obstruct cotton 4 by centre to two ends; Described support iron wire 3 is V-shaped, supports iron wire 3 and runs through obstruct cotton 4.
Described glass tube 2 is hard transparent glass pipe.
Described obstruct cotton 4 is glass fiber or synthetic cotton, and the thickness intercepting cotton 4 is 1mm ~ 5mm.
The filling material that described solid adsorbent protective seam 5 and solid adsorbent contain standard substance layer 6 is activated charcoal, silica gel or porous polymer bead; Described solid adsorbent is the standard substance measuring organic gas or steam content containing the standard substance of standard substance layer 6.
Measure the sorbent tubes manufacture method of organic gas and steam content in air, it is characterized in that: comprise the steps,
Step one, hot-stretch device is utilized one end hot-stretch of glass tube to be closed, stand-by after cooling 3 seconds ~ 10 seconds;
Step 2, utilize gripper that glass tube 2 is put into filling box, glass tube 2 blind end is placed upward, vertically;
Step 3, pad device is utilized to fill in glass tube 2 to intercept cotton 4, V-arrangement to support iron wire 3, solid adsorbent protective seam 5; The thickness of described obstruct cotton 4 is 1mm ~ 5mm; The length of described support iron wire 3 is 100mm ~ 300mm; The thickness of described solid adsorbent protective seam 5 is 5mm ~ 20mm;
Step 4, solid adsorbent poured in lift funnel type vessel that low side closes, by injector head to solid adsorbent low-pressure fuel injection or topple over standard substance; Described low pressure is 0.1MPa ~ 0.5MPa;
Step 5, utilize mechanical arm to be hovered above glass tube 2 by the funnel type vessel lower end mouth of pipe in step 4, open the switch of vessel lower end, make solid adsorbent enter glass tube 2;
Step 6, bobbing machine mechanical arm, reduce to support iron wire 3, obstruct cotton 4, solid adsorbent protective seam 5, solid adsorbent containing the gap between standard substance layer 6;
Step 7, utilize that pad device fills solid adsorbent protective seam 5 in glass tube 2, V-arrangement supports iron wire 3, intercept cotton 4; The thickness of described solid adsorbent protective seam 5 is 5mm ~ 20mm; The length of described support iron wire 3 is 100mm ~ 300mm; The thickness of described obstruct cotton 4 is 1mm ~ 5mm;
Step 8, bobbing machine mechanical arm, reduce to support iron wire 3, obstruct cotton 4, solid adsorbent protective seam 5, solid adsorbent containing the gap between standard substance layer 6;
Step 9, utilize hot-stretch device one end hot-stretch of glass tube to be closed, after cooling 3 seconds ~ 10 seconds, take out filling box.
Glass tube 2 in described step one needs cleaning, dry process before use; The length of described glass tube 2 is (1.5 ~ 2) times of filling solid matter total length.
Filling box in described step 2 is enclosed construction, and inner filling high-purity nitrogen, be provided with refrigerating plant in filling box, control temperature scope is-200 DEG C ~ 0 DEG C.
Pad device in described step 3, step 7 needs cleaning, dry process before use.
The injection orifice of the funnel type vessel in described step 4 is lift, is propradation time standby, is decline state when spraying standard substance to solid adsorbent; Described injection orifice internal diameter is for solid adsorbent upper strata area in funnel 1/100 ~ 1/5.
The working temperature of described step 4 is-200 DEG C ~ 0 DEG C.
Intercepting cotton 4, solid adsorbent protective seam 5, solid adsorbent adopts zero-clearance to fill containing between standard substance layer 6, intercepts cotton 4 protection solid adsorbent and does not produce displacement, support iron wire 3 and run through and support obstruct cotton 4.
Glass tube 2 material is hard transparent glass, inside and outside be smooth surface.The each cross sectional inner diameter of glass tube 2 is consistent, and glass tube 2 seals airtight at obstruct cotton 4, solid adsorbent protective seam 5, solid adsorbent by hot-stretch after filling containing standard substance layer 6.
Solid adsorbent protective seam 5 and solid adsorbent are the porosint of the bigger serfaces such as activated charcoal, silica gel, the how empty microballoon of macromolecule containing standard substance layer 6.Solid adsorbent needs activated, dry process before use, wherein activated charcoal was 300 DEG C ~ 350 DEG C logical nitrogen 3 ~ 4 hours, silica gel is dried at 100 DEG C ~ 200 DEG C, and remove physical absorption water, porous polymer bead must by using after the material such as ether, methyl alcohol activation process.Solid adsorbent contains standard substance layer 6 by loading solid absorbent tubes after the standard substance of spray gun quantitative point spray high concentration.
Main technique of the present invention is as follows: main technique of the present invention be in the airtight filling box under low temperature nitrogen environment successively clean and fill successively in the glass tube 2 of an end closure or spray support iron wire 3, intercept cotton 4, solid adsorbent protective seam 5, solid adsorbent containing standard substance layer 6, standard substance, solid adsorbent protective seam 5, intercept cotton 4, support iron wire 3, and by hot-stretch fast, sealing operation is carried out to glass tube 2 in a nitrogen environment.Filling box is taken out after solid absorbent tubes cooling.Spray and adopt point-like spraying, spray area contains standard substance layer 6 Altitude control by control spraying liquid pressure and solid adsorbent, and solid absorbent tubes internal standard content of material controls by spraying spray solution concentration in total amount and solution.
Specification of the present invention and parameter as follows: the total pipe range 50mm ~ 200mm of solid absorbent tubes; Solid adsorbent protective seam 5 and solid adsorbent are containing standard substance layer 6 overall length 30mm ~ 150mm; Solid sorbent particles diameter 0.1mm ~ 1mm; Intercepting cotton 4 materials is the more weak material of glass fiber or other adsorb organic compound mass-energy power, thickness 1mm ~ 5mm; Injection orifice is circular, internal diameter 0.5mm ~ 2mm, and during injection standard substance, distance solid adsorbent is 5mm ~ 20mm containing the distance of standard substance layer 6; Expulsion pressure 0.5MPa ~ 5.0MPa; Standard substance spraying horizontal sectional area is greater than solid adsorbent and is less than solid adsorbent containing 3/4 of standard substance layer 6 sectional area containing 1/4 of standard substance layer 6 sectional area; Spray solution is the pure solution of standard substance; Seal box environment temperature is lower than spraying liquid temperature 5 DEG C ~ 30 DEG C.
The specific embodiment of the present invention is as follows:
Methyl alcohol standard substance in embodiment 1, silicone tube.Spraying liquid is methyl alcohol, the total pipe range 100mm of solid absorbent tubes, internal diameter 5mm, intercepting cotton 4 materials is glass fiber thickness 2mm, solid adsorbent protective seam 5 thickness 20mm, solid adsorbent is containing standard substance layer 6 thickness 30mm, silica gel particle diameter 0.3mm ~ 0.5mm, injection orifice internal diameter 1mm, during injection methyl alcohol, distance solid adsorbent is 8mm containing the distance of standard substance layer 6, expulsion pressure 1.2MPa; Standard substance spraying horizontal sectional area diameter 2mm, fluid temperature-70 DEG C, liquid spray total amount 200 μ g, airtight filling the temperature inside the box-80 DEG C.
The methanol content value measured in 20 silicone tubes in methyl alcohol standard substance sees the following form:
| 1 | 198.4μg | 2 | 200.4μg | 3 | 199.4μg | 4 | 199.3μg |
| 5 | 199.5μg | 6 | 198.7μg | 7 | 200.4μg | 8 | 198.3μg |
| 9 | 199.8μg | 10 | 201.1μg | 11 | 200.8μg | 12 | 199.7μg |
| 13 | 198.9μg | 14 | 198.0μg | 15 | 199.5μg | 16 | 200.1μg |
| 17 | 199.5μg | 18 | 198.9μg | 19 | 198.9μg | 20 | 199.1μg |
Arithmetic average 199.4 μ g, with u-test method inspection there was no significant difference.
Normal hexane standard substance in embodiment 2, activated carbon tube.Spraying liquid is normal hexane, the total pipe range 150mm of solid absorbent tubes, internal diameter 5mm, intercepting cotton 4 materials is glass fiber thickness 3mm, solid adsorbent protective seam 5 thickness 30mm, solid adsorbent is containing standard substance layer 6 thickness 40mm, activated carbon granule diameter 0.4mm ~ 0.7mm, injection orifice internal diameter 0.5mm, during injection normal hexane, distance solid adsorbent is 12mm containing the distance of standard substance layer 6, expulsion pressure 1.7MPa; Standard substance spraying horizontal sectional area diameter 2.2mm, fluid temperature-40 DEG C, liquid spray total amount 1000 μ g, airtight filling the temperature inside the box-60 DEG C.
The normal hexane content value measured in 20 activated carbon tubes in normal hexane standard substance sees the following form:
| 1 | 998.3μg | 2 | 996.3μg | 3 | 995.4μg | 4 | 994.5μg |
| 5 | 1004.3μg | 6 | 994.3μg | 7 | 999.3μg | 8 | 998.2μg |
| 9 | 997.8μg | 10 | 998.5μg | 11 | 1002.5μg | 12 | 997.1μg |
| 13 | 998.1μg | 14 | 996.8μg | 15 | 999.7μg | 16 | 996.4μg |
| 17 | 1001.9μg | 18 | 999.1μg | 19 | 998.2μg | 20 | 996.9μg |
Arithmetic average 998.2 μ g, with u-test method inspection there was no significant difference.
Claims (10)
1. measure the sorbent tubes of organic gas and steam content in air, it is characterized in that: comprise glass tube envelope (1), glass tube (2), support iron wire (3), intercept cotton (4), solid adsorbent protective seam (5), solid adsorbent containing standard substance layer (6); Described glass tube (2) two ends are provided with glass tube envelope (1), and glass tube (2) is inner is disposed with solid adsorbent containing standard substance layer (6), solid adsorbent protective seam (5), obstruct cotton (4) by centre to two ends; Described support iron wire (3) is V-shaped, supports iron wire (3) and runs through obstruct cotton (4).
2. the sorbent tubes of organic gas and steam content in mensuration air according to claim 1, is characterized in that: described glass tube (2) is hard transparent glass pipe.
3. the sorbent tubes of organic gas and steam content in mensuration air according to claim 1, is characterized in that: described obstruct cotton (4) is glass fiber or synthetic cotton, and the thickness intercepting cotton (4) is 1mm ~ 5mm.
4. the sorbent tubes of organic gas and steam content in mensuration air according to claim 1, is characterized in that: described solid adsorbent protective seam (5) and solid adsorbent are activated charcoal, silica gel or porous polymer bead containing the filling material of standard substance layer (6); Described solid adsorbent is the standard substance measuring organic gas or steam content containing the standard substance of standard substance layer (6).
5. measure the sorbent tubes manufacture method of organic gas and steam content in air, it is characterized in that: comprise the steps,
Step one, utilize hot-stretch device by one end hot-stretch of glass tube (2) close, stand-by after cooling 3 seconds ~ 10 seconds;
Step 2, utilize gripper that glass tube (2) is put into filling box, glass tube (2) blind end is placed upward, vertically;
Step 3, utilize that pad device intercepts cotton (4) to filling in glass tube (2), V-arrangement supports iron wire (3), solid adsorbent protective seam (5); The thickness of described obstruct cotton (4) is 1mm ~ 5mm; The length of described support iron wire (3) is 100mm ~ 300mm; The thickness of described solid adsorbent protective seam (5) is 5mm ~ 20mm;
Step 4, solid adsorbent poured in lift funnel type vessel that low side closes, by injector head to solid adsorbent low-pressure fuel injection or topple over standard substance; Described low pressure is 0.1MPa ~ 0.5MPa;
Step 5, utilize mechanical arm the funnel type vessel lower end mouth of pipe in step 4 is hovered in glass tube (2) top, open the switch of vessel lower end, make solid adsorbent enter glass tube (2);
Step 6, bobbing machine mechanical arm, reduce to support iron wire (3), intercept cotton (4), solid adsorbent protective seam (5), solid adsorbent containing the gap between standard substance layer (6);
Step 7, utilize pad device to filling solid adsorbent protective seam (5) in glass tube (2), V-arrangement supports iron wire (3), intercept cotton (4); The thickness of described solid adsorbent protective seam (5) is 5mm ~ 20mm; The length of described support iron wire (3) is 100mm ~ 300mm; The thickness of described obstruct cotton (4) is 1mm ~ 5mm;
Step 8, bobbing machine mechanical arm, reduce to support iron wire (3), intercept cotton (4), solid adsorbent protective seam (5), solid adsorbent containing the gap between standard substance layer (6);
Step 9, utilize hot-stretch device by the top hot-stretch of glass tube (2) close, take out filling box after cooling 3 seconds ~ 10 seconds.
6. the sorbent tubes manufacture method of organic gas and steam content in mensuration air according to claim 5, is characterized in that: the glass tube (2) in described step one needs cleaning, dry process before use; The length of described glass tube (2) is 1.5 ~ 2 times that fill solid matter total length.
7. the sorbent tubes manufacture method of organic gas and steam content in mensuration air according to claim 5, it is characterized in that: the filling box in described step 2 is enclosed construction, inner filling high-purity nitrogen, be provided with refrigerating plant in filling box, control temperature scope is-200 DEG C ~ 0 DEG C.
8. the sorbent tubes manufacture method of organic gas and steam content in mensuration air according to claim 5, is characterized in that: the pad device in described step 3, step 7 needs cleaning, dry process before use.
9. the sorbent tubes manufacture method of organic gas and steam content in mensuration air according to claim 5, it is characterized in that: the injection orifice of the funnel type vessel in described step 4 is lift, being propradation time standby, is decline state when spraying standard substance to solid adsorbent; Described injection orifice internal diameter is for solid adsorbent upper strata area in funnel 1/100 ~ 1/5.
10. the sorbent tubes manufacture method of organic gas and steam content in mensuration air according to claim 5, is characterized in that: the working temperature of described step 4 is-200 DEG C ~ 0 DEG C.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109613146A (en) * | 2018-12-08 | 2019-04-12 | 苏州贞成分析仪器有限公司 | A kind of adsorption/desorption pipe |
| CN114527217A (en) * | 2022-02-24 | 2022-05-24 | 山东星菲化学有限公司 | Preparation method of quality control standard substance in adsorption tube |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5574230A (en) * | 1994-10-20 | 1996-11-12 | Havelick & Associates, Ltd. | Silica gel, Tenax, and carbon media adsorption tube for the sampling of a wide variety of organic compounds in air and gas streams |
| US20040161856A1 (en) * | 2003-02-18 | 2004-08-19 | Robert Handly | Chemical agent monitoring system |
| CN201281672Y (en) * | 2008-09-25 | 2009-07-29 | 浙江恒达仪器仪表有限公司 | Adsorption tube component |
| CN202281715U (en) * | 2011-07-18 | 2012-06-20 | 中国石油化工股份有限公司 | Adsorption tube taking molecular sieve as filler |
| CN203275140U (en) * | 2013-04-17 | 2013-11-06 | 上海炯测环保技术有限公司 | Manually-broken glass sampling pipe |
| CN103969093A (en) * | 2014-05-08 | 2014-08-06 | 李海涛 | Gas adsorption sampling device |
-
2014
- 2014-09-05 CN CN201410449921.6A patent/CN104297362B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5574230A (en) * | 1994-10-20 | 1996-11-12 | Havelick & Associates, Ltd. | Silica gel, Tenax, and carbon media adsorption tube for the sampling of a wide variety of organic compounds in air and gas streams |
| US20040161856A1 (en) * | 2003-02-18 | 2004-08-19 | Robert Handly | Chemical agent monitoring system |
| CN201281672Y (en) * | 2008-09-25 | 2009-07-29 | 浙江恒达仪器仪表有限公司 | Adsorption tube component |
| CN202281715U (en) * | 2011-07-18 | 2012-06-20 | 中国石油化工股份有限公司 | Adsorption tube taking molecular sieve as filler |
| CN203275140U (en) * | 2013-04-17 | 2013-11-06 | 上海炯测环保技术有限公司 | Manually-broken glass sampling pipe |
| CN103969093A (en) * | 2014-05-08 | 2014-08-06 | 李海涛 | Gas adsorption sampling device |
Non-Patent Citations (4)
| Title |
|---|
| CAROL A.MCCAFFREY 等: "Adsorbent Tube Evaluation for the Preconcentration of Volatile Organic Compounds in Air for Analysis by Gas Chromatography-Mass Spectrometry", 《ANALYST》 * |
| K.W.CHEONG 等: "New Approach for Measuring Airflows in Buildings Using a Perfluorocarbon Tracer", 《APPLIED ENERGY》 * |
| 宋珏 等: "室内空气中氨的固相吸附气体采样管研制和性能评价", 《卫生研究》 * |
| 陈桂贻 等: "被动式采样器的现状与发展", 《中国卫生检验杂志》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109613146A (en) * | 2018-12-08 | 2019-04-12 | 苏州贞成分析仪器有限公司 | A kind of adsorption/desorption pipe |
| CN114527217A (en) * | 2022-02-24 | 2022-05-24 | 山东星菲化学有限公司 | Preparation method of quality control standard substance in adsorption tube |
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| Publication number | Publication date |
|---|---|
| CN104297362B (en) | 2016-05-04 |
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