CN202141617U - Sample acquisition device for PAH pollutant in air exposed by individual - Google Patents
Sample acquisition device for PAH pollutant in air exposed by individual Download PDFInfo
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- CN202141617U CN202141617U CN201120259094U CN201120259094U CN202141617U CN 202141617 U CN202141617 U CN 202141617U CN 201120259094 U CN201120259094 U CN 201120259094U CN 201120259094 U CN201120259094 U CN 201120259094U CN 202141617 U CN202141617 U CN 202141617U
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Abstract
The utility model discloses a sample acquisition device for PAH (polycyclic aromatic hydrocarbon) pollutant in the air exposed by an individual. The sample acquisition device comprises an individual sampling pump and a cutting head with a thin film, which are connected through pipelines, and further comprises a PUF holder with the closed bottom; two cylindrical holes are parallelly formed on the PUF holder from the top to the bottom and communicated with the lower end of the holder; two PUFs in the same shape and quality are mounted in the two cylindrical holes; and hollow nuts are arranged at the tops of the cylindrical holes; and one of the nut is connected with the individual sampling pump and a battery pipeline, and the other is connected with the cutting heat. Through the sample acquisition device provided by the utility model, particles and PAHs in gas phase can be acquired at the same time, so the sampling accuracy is greatly improved, the permeability of gas-phase sample acquisition can be effectively detected, the sampling quality is effectively ensured, and the sampling efficiency is improved.
Description
Technical field
The utility model belongs to environmental monitoring, employment security and Human Health Effect and estimates the field; Relate to the harvester that human body exposes air pollutants, be specifically related to a kind of sample collecting apparatus that can expose polycyclic aromatic hydrocarbon pollutant in the air by the collection breathing zone that human body is worn.
Background technology
Estimating human body through breathing in the health risk that exposes palycyclic aromatic in the air; Often need let the experimenter wear the personal sampling pump and follow the tracks of the air sample of gathering its individual breathing zone; With this palycyclic aromatic reconditioning of estimating, understand individual residing ambient air quality, professional workshop air quality and the individual general level of the health with this.Original sampling thief device comprises sampling pump, sample lines and PM10 cutting head (interior dress sampling membrane) three parts; Sampling apparatus can be worn by human body; Along with moving of human body; Gather the palycyclic aromatic in human body respiration band air particle and the gas phase sample in good time, wherein mainly gather airborne particle through the filter membrane of sampling head.Because palycyclic aromatic (PAHs) compounds all has bigger distribution mutually and in the gas phase at particle; Especially the PAHs of 2～4 rings also has sizable ratio to distribute in gas phase; And existing personal sampling device only can be gathered the particle phase sample of atmosphere; Can not gather the gas phase sample, like this to the detection of the exposure concentrations of PAHs in the air being brought certain deviation because of leaking gas production phase sample.
The utility model content
The purpose of the utility model provides a kind of sample collecting apparatus to polycyclic aromatic hydrocarbon pollutant in the individuality exposure air that can gather particle phase sample and gas phase sample simultaneously.
For realizing above-mentioned purpose; A kind of individual sample collecting apparatus that exposes polycyclic aromatic hydrocarbon pollutant in the air of the utility model; Comprise personal sampling pump that connects through pipeline and the cutting head that film is housed, also comprise a PUF fixator, wherein install PUF; The one of which end is connected with personal sampling pump line road, and the other end is connected with the cutting head pipeline.
It is block that said PUF fixator is, and the bottom sealing is offered two cylindrical holes and two cylindrical holes are communicated with in the fixator lower end from the top to the bottom direction is parallel, and the PUF of two sections identical shaped and quality is housed in two cylindrical holes, and nut is established at the top of cylindrical hole, nut hollow.
Said personal sampling pump is connected through pipeline with a nut of fixator, and another nut of fixator is connected with cutting head through pipeline.
Between cylindrical hole and the nut and all pipe interfaces all seal.The utility model can be gathered the palycyclic aromatic in particle and the gas phase simultaneously because folder has been established fixator as gas phase sample collecting part, improves the accuracy of sampling greatly; Fixator is designed to " two-part ", and the PUF of two sections identical shaped and quality can be installed respectively, can effectively check the penetrance of gas phase sample collecting, has effectively guaranteed the quality of sampling, has improved sampling efficiency.
Description of drawings
Fig. 1 is the formation synoptic diagram of the utility model sampling apparatus.
Fig. 2 is a gas phase collecting part PUF fixator sectional structure chart in the utility model sampling apparatus.
Embodiment
Referring to shown in Figure 1; The individual sample collecting apparatus that exposes polycyclic aromatic hydrocarbon pollutant in the air of the utility model comprises personal sampling pump 1, PUF fixator 3 and the cutting head 2 that order connects with pipeline 4; Wherein: personal sampling pump 1 is for the sampling power section, from charged pool; Cutting head 2 is the particle collecting part, can be processed by PM10 or PM2.5, and filter membrane wherein is installed, and can particle be collected the collection that is used for the atmosphere particulate samples above the filter membrane; PUF fixator 3 is the gas phase collecting part, and two sections PUF (polyurethane foam plug, Chinese: isocyanurate foam) be used for adsorbing gas phase to gather the gas phase sample wherein are installed; The structure of PUF fixator 3 is a teflon block referring to shown in Figure 2, bottom 31 sealings; 32 are communicated with in the fixator lower end to parallel two cylindrical holes, 33, two cylindrical holes 33 of offering of bottom direction from the top, and the PUF of two sections identical shaped and quality is installed in two cylindrical holes 33; Hollow nut 34 is established at the top of cylindrical hole 33, and nut 34 is connected with pipeline 4 respectively and seals, and the nut 34 of a hollow is installed respectively in the upper end of two cylindrical holes 33; The place that nut 34 contacts with hole wall; Can be with the raw material band parcel in order to avoid leak gas, a nut 34 connects personal sampling pumps 1 through pipeline 4, and another nut 34 connects the cutting head 2 of sampling through pipeline 4; Pipeline 4 is a plastic tube, is the conduit of gas.Here, personal sampling pump 1, cutting head 2 and pipeline 4 are existing weaponry and equipment.
This sample collecting apparatus assembling process: in two cylindrical holes 33 of fixator 3, be respectively charged into one section PUF, add top nut 34 and fix the junction sealing respectively with cylindrical hole 33 upper ends; The sampling membrane of in cutting head 2, packing into, cutting head 2 should be coated a little silane oil over against the part of thief hatch, to reduce the particle sputter; Be connected with the intercommunicating pore of a nut 34 of fixator 3 with the inlet end of a pipeline 4 personal sampling pump 1; Be connected with the outlet side of cutting head 2 with the intercommunicating pore of another root pipeline 4 another nut 34 of fixator 3; Adopt the raw material band parcel in order to avoid leak gas at the pipe interface place, whole sampling apparatus need carry out airtight test to guarantee whole sealing joints after joining connection.
This sample collecting apparatus use: personal sampling pump that assembles 1 and PUF fixator 3 be put in the bag carry; The cutting head 2 that film has been housed is positioned the front; Open sampling pump 24h; Can tackle particulate in air through cutting 2 film, can be through the PUF in the PUF fixator 3 the gas phase sample absorption that sees through film.After sampling finishes; Film and PUF are taken off from sampling apparatus; The gas phase sample extraction that the method for extracting with Suo Shi is adsorbed the particle on the film and PUF is in organic solvent; Through after link such as purifying, concentrate, can detect the concentration of palycyclic aromatic in the extract with gas chromatography/mass spectrometry or high performance liquid chromatography again.According to finally drawing the concentration (every cubic metre mass concentration) that human body respiration exposes palycyclic aromatic after the sampling quantity correction.
The characteristics of the utility model:
(1) can gather particle phase and gas phase simultaneously, effectively improve the accuracy of sampling.Palycyclic aromatic is one type of organic contaminant; Wherein the palycyclic aromatic of epipodium (like benzo (a) pyrene etc.) mainly be distributed in particle mutually in; And the palycyclic aromatic of little ring (like naphthalene, anthracene, phenanthrene etc.) molecular weight is little, steam forces down, and in air, mainly is distributed in gas phase, if do not have the utility model fixator 3 this part; Then to miss a large amount of little ring polycyclic aromatic hydrocarbons, make sampled concentrations inaccurate.This device can be gathered the palycyclic aromatic in particle and the gas phase simultaneously, improves the accuracy of sampling greatly.
(2) can effectively check the penetrance of sample collecting, effectively guarantee the quality and the efficient of sampling.Fixator 3 in the utility model sampling apparatus is designed to " two-part "; The PUF of two sections identical shaped and quality can be installed respectively; If back one section sample concentration is less than the sample concentration of the last period; Explain that then sampling process does not penetrate,, explain that then sampling process penetrates if second section sample concentration has equaled or exceeded first section concentration.The penetrance of gas phase sample collecting can have effectively been checked in such design, has effectively guaranteed the quality of sampling, has improved sampling efficiency.
Claims (4)
1. individual sample collecting apparatus that exposes polycyclic aromatic hydrocarbon pollutant in the air; Comprise personal sampling pump (1) that connects through pipeline and the cutting head (2) that film is housed; It is characterized in that: also comprise a PUF fixator (3); Wherein install PUF, the one of which end is connected with personal sampling pump (1) pipeline, and the other end is connected with cutting head (2) pipeline.
2. sample collecting apparatus according to claim 1; It is characterized in that: said PUF fixator (3) is block; Bottom sealing is offered two cylindrical holes and two cylindrical holes are communicated with in the fixator lower end from the top to the bottom direction is parallel, and the PUF of two sections identical shaped and quality is housed in two cylindrical holes; Nut is established at the top of cylindrical hole, nut hollow.
3. sample collecting apparatus according to claim 2 is characterized in that: said personal sampling pump (1) is connected through pipeline with a nut of fixator (3), and another nut of fixator (3) is connected with cutting head (2) through pipeline.
4. according to claim 1 or 2 or 3 described sample collecting apparatus, it is characterized in that: between cylindrical hole and the nut and all pipe interfaces all seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120259094U CN202141617U (en) | 2011-07-21 | 2011-07-21 | Sample acquisition device for PAH pollutant in air exposed by individual |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120259094U CN202141617U (en) | 2011-07-21 | 2011-07-21 | Sample acquisition device for PAH pollutant in air exposed by individual |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202141617U true CN202141617U (en) | 2012-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120259094U Expired - Lifetime CN202141617U (en) | 2011-07-21 | 2011-07-21 | Sample acquisition device for PAH pollutant in air exposed by individual |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202141617U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359896A (en) * | 2011-07-21 | 2012-02-22 | 中国环境科学研究院 | Sample collection device for polycyclic aromatic hydrocarbon pollutants in individual exposure air and analysis and evaluation method for pollutants |
| CN107966331A (en) * | 2017-10-23 | 2018-04-27 | 中国科学院东北地理与农业生态研究所 | The harvester and method that field test soil-plant system organic pollution soil-gas exchanges |
-
2011
- 2011-07-21 CN CN201120259094U patent/CN202141617U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359896A (en) * | 2011-07-21 | 2012-02-22 | 中国环境科学研究院 | Sample collection device for polycyclic aromatic hydrocarbon pollutants in individual exposure air and analysis and evaluation method for pollutants |
| CN107966331A (en) * | 2017-10-23 | 2018-04-27 | 中国科学院东北地理与农业生态研究所 | The harvester and method that field test soil-plant system organic pollution soil-gas exchanges |
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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: 20120208 |
|
| CX01 | Expiry of patent term |