CN202229955U - Passive type sampler for nicotine monitoring in indoor air - Google Patents
Passive type sampler for nicotine monitoring in indoor air Download PDFInfo
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- CN202229955U CN202229955U CN2011203900193U CN201120390019U CN202229955U CN 202229955 U CN202229955 U CN 202229955U CN 2011203900193 U CN2011203900193 U CN 2011203900193U CN 201120390019 U CN201120390019 U CN 201120390019U CN 202229955 U CN202229955 U CN 202229955U
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- nicotine
- monitoring
- sampling thief
- passive type
- glass fiber
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Abstract
The utility model belongs to the technical field of indoor air pollutant monitoring, in particular to a passive type sampler for nicotine monitoring in indoor air, which forms a cavity by a front cover, a bearing plate and a base. The bearing plate is fixed on the base, and a glass fiber filter membrane, a pressing ring, a gauze mesh, a nuclear pore filter membrane and a silicon rubber seal ring are sequentially stacked in the cavity and on the bearing plate. 15-25 air inlets are arranged on the front cover. Sodium acid sulfate solution serves as nicotine absorption liquid, alkaline nicotine and the sodium acid sulfate on the glass fiber filter membrane form salts which are relatively stable, glycerol is added in the absorption liquid, and nicotine gaseous molecular is easy to be absorbed. In addition, the glass fiber filter membrane which is characterized by thermostability, small resistance and economic performance and the like serves as an adsorbing medium, the nicotine collected on the filter membrane can be extracted for analysis by reagents such as alkali after being sampled, so that the sampler is much convenient to use. Compared with like products, the sampler is high in sampling rate, convenient to carry during using and not easy to damage.
Description
Technical field
The utility model belongs to the indoor air pollutants monitoring technical field, and particularly a kind of nicotine that produces for tobacco smoke in the indoor environment carries out the sampling thief of passive type sampling.
Background technology
China is maximum in the world tobacco production and consumption state; Chinese chronic disease report in 2006 is pointed out; The death toll that was caused by smoking in 2000 is nearly 1,000,000, surpasses the summation of AIDS, tuberculosis, traffic hazard and committed suicide number, accounts for 12% of whole death.The Chinese government pays much attention to Tobacco Control work, and has signed World Health Organization's " Framework Convention on Tobacco Control " on November 10th, 2003, and through the 17 meeting official approval of the tenth Standing Committee of the National People's Congress, in January, 2006 is formally effective in China.
Along with carrying out of Tobacco Control work, a large amount of appraisals need be carried out, and the detection of nicotine is to estimate one of necessary means of Tobacco Control work effect in the room air.Result from when nicotine is result of combustion of tobacco the smog grain mutually in a kind of material, get into that dilution promptly is transformed into gas phase state in the air.Sampling is the important step during nicotine detects in the air, and the method for sampling mainly contains active and two kinds of passive types.Active sampling is to let airborne nicotine be adsorbed on as on the media such as absorption liquid, solid-phase adsorbent through the power extraction room air, and the passive type sampling is based on the gas molecule diffusion principle.Compare with active sampling; Passive type sampling principal feature is without any need for the power supply and the power of bleeding; Have that volume is little, light weight, easy and simple to handle, easy care and safe and reliable characteristics; Can wear on personal clothing or hang on indoor fixed position, as in a period of time external exposure or ambient air quality evaluation.
More external research institutions are used for evaluation of indoor tobacco smoke concentration and Human Health Effect research aspect with the passive type sampling; Like the U.S. since the nineties in last century; The nicotine passive type sampling thief of research and development is used for the public place and the crowd exposes evaluation, has obtained achievement in research preferably.But this sampling thief price is more expensive, the fragile layer that keeps out the wind in the operation, and sampling rate is lower.The research of tobacco smoke concentration and the outer exposure level of individual tobacco comparatively is short of in the air of China's evaluation at present, does not still have the nicotine individuality that can be used for independent intellectual property right and exposes and the environmental exposure sampling thief.
Summary of the invention
The purpose of the utility model provide a kind of simple and convenient, compare the sampling rate height with external similar sampling thief, be used for the passive type sampling thief of room air nicotine monitoring, be applied to aspects such as public place Tobacco Control recruitment evaluation and Human Health Effect research.
The technical scheme of the utility model is:
This sampling thief constitutes cavity by protecgulum, supporting plate and base, and supporting plate is fixed on the base, in said cavity, on the supporting plate, stacks glass fiber filter, pressure ring, gauze, nuclear pore filter film and silicone rubber O-ring successively; 15-25 air admission hole is set on the protecgulum.Glass fiber filter is an absorption layer, and gauze and nuclear pore filter film constitute the layer that keeps out the wind, and the space segment that keeps out the wind between layer and the absorption layer is static diffusion chamber.
Said protecgulum, base, pressure ring and supporting plate are hot-forming by acrylic plastering.
Said sampling thief is preferably circle, diameter 47mm, thickness 8mm; The quantity of said air admission hole is preferably 19, and evenly distributed by multilayer annulus mode, the aperture is 5.62mm, hole depth 1.84mm.
The aperture of said nuclear pore filter film is that 1 μ m, thickness are that 11 μ m, percentage of open area are 15.7%.
Said gauze is the terylene gauze, and thickness 0.3mm, percentage of open area are 85.5%.
Said glass fiber filter is the glass fiber filter that is impregnated with the nicotine absorption liquid of niter cake-glycerine preparation.
On the said protecgulum hanger is set.
Gaseous state nicotine molecule passes the layer that keeps out the wind from the air admission hole of sampling thief protecgulum, gets into static diffusion chamber, spreads and collects on the glass film.The layer that keeps out the wind has stopped bigger wind speed, avoids the formation of eddy current in the diffusion chamber, thereby guarantees that the nicotine gas in the diffusion chamber is in a kind of static molecular diffusion state, and the mass transport process of nicotine this moment in diffusion chamber followed the Fick law of gas diffusion.
The beneficial effect of the utility model is:
This sampling thief adopts sodium bisulfate as absorption liquid, the nicotine of alkalescence and the NaHSO on the glass film
4Can form metastable salt.Simultaneously, keep wetting regime, in absorption liquid, add a certain amount of glycerine, help the absorption of nicotine gaseous molecular in order to make filter membrane.In addition, as adsorbing medium, that the glass filter membrane has is high temperature resistant, resistance is little, the economic dispatch characteristics with the glass filter membrane, and reagent such as sampling back available bases will be captured in nicotine on the filter membrane and extract to get off to be used for and analyze, and it is comparatively convenient to use.
Sampling media is simple for production, and sampling rate is high, and in use easy to carry, not cracky.
At 30m
3In the air test chamber, the tobacco smoke of basic, normal, high three kinds of variable concentrations taking place, be suspended on the same position in the test chamber simultaneously with the known nicotine sampling thief of sampling rate behind the mixing, in the identical time, samples.Sampling finishes the aftertreatment filter membrane, detects the amount of adsorptive nicotine on the filter membrane with gas chromatography-mass spectrography.Through repeatedly measuring, this novel said sampling thief sampling rate value is 32ml/min, is higher than the 24ml/min of like product.
Prepare low, high two kinds of concentration nicotines mark liquid; Be added to respectively on the glass filter membrane that is impregnated with the nicotine absorption liquid, filter membrane is put into sampling thief, put into aluminium foil bag after installing and seal; Place exsiccator; Test respectively at respectively getting 6 samples on the same day, the 3rd, 5,7,9 day, with the same day test value compare, the fate of rate of descent≤10% is nicotine stabilization time in the sampling thief.Show that through a plurality of lab investigation after the sampling of nicotine passive type sampling thief, sample is placed under the room temperature airtight condition can be stablized 7 days at least.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Label among the figure:
The 1-protecgulum; The 2-silicone rubber O-ring; The 3-nuclear pore filter film; The 4-gauze; The 5-pressure ring; The 6-glass fiber filter; The 7-supporting plate; The 8-base; The 9-hanger.
Embodiment
The utility model provides a kind of passive type sampling thief that is used for the monitoring of room air nicotine, below in conjunction with accompanying drawing and embodiment the utility model is further specified.
As shown in Figure 1, circular sampling thief constitutes cavity by protecgulum 1, supporting plate 7 and base 8, and supporting plate 7 is fixed on the base 8, in said cavity, on the supporting plate 7, stacks glass fiber filter 6, pressure ring 5, gauze 4, nuclear pore filter film 3 and silicone rubber O-ring 2 successively.Glass fiber filter 6 is the nicotine absorption layer, and gauze 4 constitutes the layer that keeps out the wind with nuclear pore filter film 3, and the space segment that keeps out the wind between layer and the absorption layer is static diffusion chamber.Wherein, protecgulum 1, base 8, pressure ring 5 and supporting plate 7 are hot-forming by acrylic plastering.The diameter of sampling thief is 47mm, and thickness is 8mm; 19 air admission holes are set on the protecgulum 1, and evenly distributed by multilayer annulus mode, the aperture is 5.62mm, hole depth 1.84mm.The aperture of nuclear pore filter film 3 is that 1 μ m, thickness are that 11 μ m, percentage of open area are 15.7%; Gauze 4 is the terylene gauze, and thickness 0.3mm, percentage of open area are 85.5%.Being impregnated with component on the glass fiber filter 6 is the nicotine absorption liquid of 4wt% niter cake-5wt% glycerine.Hanger 9 is set on the protecgulum 1.
When sampling thief uses, operate according to following steps:
(1) under the smokeless environment in laboratory, sampling thief is installed by shown in the accompanying drawing.After arriving the sampling location, confirm sampling location and suspension condition, and whether the inspection sampling thief is complete, protecgulum and base should keep tight compacting;
(2) at siting suspension sampling thief, guarantee that sampling thief is fixedly secured, the porose one side of the protecgulum of sampling thief is towards room to be monitored;
(3) sampling thief is suspended on the 1.5-2m place apart from ground, and nearest door and window, ventilating system and smoker (or potential smoker) be at least greater than 1m, apart from ceiling, wall greater than 0.5m;
(4) situation such as record sampling location, sampling thief numbering, beginning sampling time, chamber volume, ventilation;
(5) blank: confirm sampling thief, record number as blank;
(6) parallel appearance: will be placed in by the normal sample sampling thief as the sampling thief of parallel appearance, the operation steps of putting is identical, and both write down the information of parallel appearance sampling thief simultaneously at a distance of 5-10cm;
(7) the indoor environment down-sampler suspension time is 5-7 days, and periodical inspection, record sampling thief suspension situation and environmental baseline;
(8) after monitoring finishes, reclaim sampling thief at the scene, and take back the laboratory, put into exsiccator or-20 ℃ of refrigerators are preserved.
(9) under smokeless environment, take out glass fiber filter, with the inside doubling of exasperate, it is pending to put into color comparison tube or other container adding reagent; Sample after the processing carries out check and analysis on instruments such as gas chromatography-mass spectrum, liquid chromatography.
Claims (7)
1. one kind is used for the passive type sampling thief that the room air nicotine is monitored; Constitute cavity by protecgulum (1), supporting plate (7) and base (8); It is characterized in that; Supporting plate (7) is fixed on the base (8), in said cavity, on the supporting plate (7), stacks glass fiber filter (6), pressure ring (5), gauze (4), nuclear pore filter film (3) and silicone rubber O-ring (2) successively; 15-25 air admission hole is set on the protecgulum (1).
2. a kind of passive type sampling thief that is used for the monitoring of room air nicotine according to claim 1 is characterized in that said protecgulum (1), base (8), pressure ring (5) and supporting plate (7) are hot-forming by acrylic plastering.
3. a kind of passive type sampling thief that is used for the monitoring of room air nicotine according to claim 1 is characterized in that said sampling thief is preferably circle, diameter 47mm, thickness 8mm; The quantity of said air admission hole is preferably 19, and evenly distributed by multilayer annulus mode, the aperture is 5.62mm.
4. a kind of passive type sampling thief that is used for the monitoring of room air nicotine according to claim 1 is characterized in that the aperture of said nuclear pore filter film (3) is that 1 μ m, thickness are that 11 μ m, percentage of open area are 15.7%.
5. a kind of passive type sampling thief that is used for the monitoring of room air nicotine according to claim 1 is characterized in that said gauze (4) is the terylene gauze, and thickness 0.3mm, percentage of open area are 85.5%.
6. a kind of passive type sampling thief that is used for the monitoring of room air nicotine according to claim 1 is characterized in that, said glass fiber filter (6) is the glass fiber filter that is impregnated with the nicotine absorption liquid of niter cake-glycerine preparation.
7. a kind of passive type sampling thief that is used for the monitoring of room air nicotine according to claim 1 is characterized in that, hanger (9) is set on the said protecgulum (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203900193U CN202229955U (en) | 2011-10-13 | 2011-10-13 | Passive type sampler for nicotine monitoring in indoor air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203900193U CN202229955U (en) | 2011-10-13 | 2011-10-13 | Passive type sampler for nicotine monitoring in indoor air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202229955U true CN202229955U (en) | 2012-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203900193U Expired - Lifetime CN202229955U (en) | 2011-10-13 | 2011-10-13 | Passive type sampler for nicotine monitoring in indoor air |
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| CN (1) | CN202229955U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829996A (en) * | 2012-08-28 | 2012-12-19 | 中国烟草总公司郑州烟草研究院 | Filter disc clamping device for filtering smoke of cigarette |
| CN104964891A (en) * | 2015-07-10 | 2015-10-07 | 北京市环境保护监测中心 | Detection method of no-clean particulate matter concentration as well as sampling apparatus and sampling device |
| CN105115791A (en) * | 2015-09-16 | 2015-12-02 | 深圳市建筑科学研究院股份有限公司 | Passive type contaminant flux sampling device |
| CN108226136A (en) * | 2018-01-26 | 2018-06-29 | 福州大学 | A kind of device and its application method of quick detection Nicotine in Tobacco content |
| CN109387400A (en) * | 2017-08-09 | 2019-02-26 | 中国石油化工股份有限公司 | A kind of polymeric membrane chlorohydrocarbon personal sampler and sampled concentrations measurement method |
| CN113567529A (en) * | 2021-06-03 | 2021-10-29 | 同济大学 | Gas-phase nicotine electrochemical determination method based on passive sampling method |
| RU2786068C1 (en) * | 2021-11-03 | 2022-12-16 | Федеральное бюджетное учреждение науки "Северо-Западный научный центр гигиены и общественного здоровья" | Method for sampling for determination of nicotine concentrations and priority indicators in air of enclosed spaces |
-
2011
- 2011-10-13 CN CN2011203900193U patent/CN202229955U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829996A (en) * | 2012-08-28 | 2012-12-19 | 中国烟草总公司郑州烟草研究院 | Filter disc clamping device for filtering smoke of cigarette |
| CN102829996B (en) * | 2012-08-28 | 2014-10-29 | 中国烟草总公司郑州烟草研究院 | Filter disc clamping device for filtering smoke of cigarette |
| CN104964891A (en) * | 2015-07-10 | 2015-10-07 | 北京市环境保护监测中心 | Detection method of no-clean particulate matter concentration as well as sampling apparatus and sampling device |
| CN108414386A (en) * | 2015-07-10 | 2018-08-17 | 北京市环境保护科学研究院 | The sample devices of particle concentration free of cleaning |
| CN105115791A (en) * | 2015-09-16 | 2015-12-02 | 深圳市建筑科学研究院股份有限公司 | Passive type contaminant flux sampling device |
| CN109387400A (en) * | 2017-08-09 | 2019-02-26 | 中国石油化工股份有限公司 | A kind of polymeric membrane chlorohydrocarbon personal sampler and sampled concentrations measurement method |
| CN108226136A (en) * | 2018-01-26 | 2018-06-29 | 福州大学 | A kind of device and its application method of quick detection Nicotine in Tobacco content |
| CN113567529A (en) * | 2021-06-03 | 2021-10-29 | 同济大学 | Gas-phase nicotine electrochemical determination method based on passive sampling method |
| RU2786068C1 (en) * | 2021-11-03 | 2022-12-16 | Федеральное бюджетное учреждение науки "Северо-Западный научный центр гигиены и общественного здоровья" | Method for sampling for determination of nicotine concentrations and priority indicators in air of enclosed spaces |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120523 |
|
| CX01 | Expiry of patent term |