CN109060455A - A kind of solvent desorption type active carbon sampling pipe and its method of sampling - Google Patents
A kind of solvent desorption type active carbon sampling pipe and its method of sampling Download PDFInfo
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- CN109060455A CN109060455A CN201810721163.7A CN201810721163A CN109060455A CN 109060455 A CN109060455 A CN 109060455A CN 201810721163 A CN201810721163 A CN 201810721163A CN 109060455 A CN109060455 A CN 109060455A
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- active carbon
- tube body
- glass tube
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- carbon sampling
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2214—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling by sorption
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2273—Atmospheric sampling
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
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- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of solvent desorption type active carbon sampling pipe and its method of samplings, tube body is sampled including active carbon, active carbon is equipped on active carbon sampling tube body, mineral wool, glass tube, plastics cap bag, cap bag interface, air inlet, glass tube is equipped on active carbon sampling tube body, it is 6cm in diameter, length is that the bosom of the glass tube of 80cm is equipped with mineral wool, mineral wool two sides among glass tube are respectively filled in the active carbon 100mg and 50mg for handling activated 60-80 mesh, spring wire is equipped in the outside of active carbon, active carbon is fixed by spring wire, avoid the elasticity of active carbon and mineral wool bad, the throughput size of glass tube is controlled to stablize, air inlet is equipped at the both ends of glass tube, plastics cap bag is equipped at air inlet, pass through high-temperature oxygen Spray head fire is sealed, and so that active carbon sampling tube body is kept good air-tightness, and not easily to fall off, is not present or has an impact the substance of measurement, the present invention is sampled with high efficiency, while not influencing sampled data.
Description
Technical field
The present invention relates to active carbon sampling pipe technical field, specially a kind of solvent desorption type active carbon sampling pipe and its adopt
Quadrat method.
Background technique
The evaluation and test of environment is sampled firstly the need of to the noxious material in environment, atmospheric sampling is used when usually sampling
Device is concentrated on the noxious material in air in glass active carbon sampling pipe, by a certain amount of gas flow then by glass
Noxious material in glass active carbon sampling pipe is shifted, is detected, makes examining report.
Chinese Professional health starts within 2003, we touch the production of solvent desorption type active carbon sampling pipe.Currently, state
The defect of the interior product has: the mesh number of 1. activated carbon tubes is inconsistent, and elasticity is bad, causes throughput too large or too small.2:
Cotton is loose and non-refractory, generates bad gases affect background.3. dealing with improperly for active carbon charcoal causes impurity excessive, background
It is higher, influence sampled data.4. glass tube thickness is inconsistent, the hand that will cause user when cutting is scratched.
Summary of the invention
The purpose of the present invention is to provide a kind of samplings of high efficiency, while not influencing a kind of solvent desorption type of sampled data
Active carbon sampling pipe and its method of sampling, to solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme: a kind of solvent desorption type active carbon sampling pipe, including
Active carbon samples tube body, and the active carbon sampling tube body is equipped with glass tube, and the bosom of the glass tube is equipped with glass
Glass cotton, the upper end of the mineral wool are equipped with active carbon 100mg, and the lower section of the mineral wool is equipped with active carbon 50mg, the activity
The outside of charcoal is equipped with spring steel wire, and the top and bottom of the glass tube are equipped with plastics cap bag.
Preferably, the outer dia of the glass tube is 5.5cm-6cm, glass tube diameter is 3.5cm-4.0cm, glass
The length of glass pipe is 80cm, and the both ends of the glass tube are equipped with cap bag interface, and the cap bag interface is equipped with plastics cap bag.
Preferably, one end of the glass tube is equipped with air inlet, and the other end of glass tube seals.
Preferably, the active carbon uses 60-80 purpose.
Preferably, the active carbon sampling tube body is sealed using high-temperature oxygen spray head fire.
Preferably, active carbon sampling tube body is under 200mL/min flow, and the aeration resistance of activated carbon tube should be 2 ~
4kPa。
Preferably, the active carbon sampling tube body is lower than detection limit, the desorption of benzene to benzene, toluene and dimethylbenzene background values
Efficiency > 99.6%, the desorption efficiency > 98% of toluene, the desorption efficiency > 96% of dimethylbenzene, 100mg active carbon benzene break through volume >
7mg, toluene break through volume > 13.1mg, dimethylbenzene, which penetrates, holds > 10.8mg
Preferably, a kind of solvent desorption type active carbon sampling pipe, the method for sampling the following steps are included:
A, active carbon is sampled on tube body first, the plastics cap bag that glass tube is equipped with air inlet one end is taken away；
B, in the gaseous environment for sampling active carbon sampling tube body to needs, make gas with the entrance of 200mL/min flow standard
The inside of active carbon sampling tube body；
C, active carbon sampling tube body is rested on into sample space 10min；
D, then one end that the active carbon sampling tube body equipped with sampled air is equipped with air inlet is lived with plastic sheath cap, then
Active carbon sampling tube body is placed into active carbon sampling tube body holder.
Compared with prior art, the beneficial effects of the present invention are:
(1) it is equipped with spring wire in the outside of active carbon, active carbon is fixed by spring wire, avoids active carbon and glass
The elasticity of cotton is bad, controls the throughput size of glass tube and stablizes；
(2) it is equipped with air inlet at the both ends of glass tube, is equipped with plastics cap bag at air inlet, is sealed by high-temperature oxygen spray head fire
Mouthful, so that active carbon sampling tube body is kept good air-tightness, and not easily to fall off, is not present or has an impact the substance of measurement；
(3) present invention has high efficiency sampling, while not influencing sampled data.
Detailed description of the invention
Fig. 1 is that active carbon of the present invention samples tube body straight tube structure schematic diagram；
Fig. 2 is that the U-shaped active carbon of the present invention samples tube body schematic diagram；
Fig. 3 is active carbon sampling pipe body interior structural schematic diagram of the present invention.
In figure: 1, active carbon samples tube body；2, active carbon；3, mineral wool；4, glass tube；5, plastics cap bag；6, cap bag
Interface；7, air inlet.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1, referring to Fig. 1, the present invention provides a kind of technical solution: a kind of solvent desorption type active carbon sampling pipe,
Tube body 1 is sampled including active carbon, it is straight tube that active carbon, which samples tube body 1, is equipped with glass tube on active carbon sampling tube body 1
4, one end of glass tube 4 is equipped with air inlet 7, and the other end that active carbon samples tube body 1 is sealed using high-temperature oxygen spray head fire, made
Active carbon sampling tube body 1 keeps good air-tightness, and not easily to fall off, is not present or has an impact the substance of measurement, glass
The other end of pipe 4 seals, and the bosom of glass tube 4 is equipped with mineral wool 3, and the upper end of mineral wool 3 is equipped with active carbon 2100mg, glass
The lower section of glass cotton 3 is equipped with active carbon 250mg, and active carbon 2 uses 60-80 purpose.
It is equipped with spring steel wire in the outside of active carbon 2, active carbon 2 and mineral wool 3 are fixed by spring steel wire,
The top and bottom of glass tube 4 are equipped with plastics cap bag 5, and the outer dia of glass tube 5 is 5.5cm-6cm, 5 inside diameter of glass tube
For 3.5cm-4.0cm, the length of glass tube 5 is 80cm, and the both ends of glass tube 5 are equipped with cap bag interface 6, and cap bag interface 6 is equipped with
Plastics cap bag 5.
Embodiment 2, referring to Fig. 2, the present invention provides a kind of technical solution: a kind of solvent desorption type active carbon sampling pipe,
Tube body 1 is sampled including active carbon, it is straight tube that active carbon, which samples tube body 1, is equipped with glass tube on active carbon sampling tube body 1
4, one end of glass tube 4 is equipped with air inlet 7, and the other end that active carbon samples tube body 1 is sealed using high-temperature oxygen spray head fire, made
Active carbon sampling tube body 1 keeps good air-tightness, and not easily to fall off, is not present or has an impact the substance of measurement, glass
The other end of pipe 4 seals, and the bosom of glass tube 4 is equipped with mineral wool 3, and the upper end of mineral wool 3 is equipped with active carbon 2100mg, glass
The lower section of glass cotton 3 is equipped with active carbon 250mg, and active carbon 2 uses 60-80 purpose.
It is equipped with spring steel wire in the outside of active carbon 2, active carbon 2 and mineral wool 3 are fixed by spring steel wire,
The top and bottom of glass tube 4 are equipped with plastics cap bag 5, and the outer dia of glass tube 5 is 5.5cm-6cm, 5 inside diameter of glass tube
For 3.5cm-4.0cm, the length of glass tube 5 is 80cm, and the both ends of glass tube 5 are equipped with cap bag interface 6, and cap bag interface 6 is equipped with
Plastics cap bag 5.
Active carbon samples tube body 1 under 200mL/min flow, and the aeration resistance of activated carbon tube 2 should be 2 ~ 4kPa, activity
Charcoal samples tube body 1 and is lower than detection limit, the desorption efficiency > 99.6% of benzene, the desorption of toluene to benzene, toluene and dimethylbenzene background values
Efficiency > 98%, the desorption efficiency > 96% of dimethylbenzene, 100mg active carbon benzene break through volume > 7mg, toluene break through volume >
13.1mg, dimethylbenzene, which penetrates, holds > 10.8mg.
Active carbon is sampled on tube body 1 first when being sampled, glass tube 4 is equipped with the modeling of 7 one end of air inlet
Material cap bag 5 is taken away, active carbon is sampled in the gaseous environment that 1 pair of tube body needs to sample, is made gas with 200mL/min flux scale
Standard enters the inside of active carbon sampling tube body 1, and active carbon sampling tube body 1 is rested on sample space 10min, then will dress
One end plastics cap bag 5 for having the active carbon sampling tube body 1 of sampled air to be equipped with air inlet 7 covers, and then adopts active carbon
Sample tube body 1 is placed into active carbon sampling tube body holder.
A kind of solvent desorption type active carbon sampling pipe, the method for sampling the following steps are included:
A, active carbon is sampled on tube body 1 first, the plastics cap bag 5 that glass tube 4 is equipped with 7 one end of air inlet is taken away；
B, active carbon is sampled in the gaseous environment that 1 pair of tube body needs to sample, makes gas with the entrance of 200mL/min flow standard
The inside of active carbon sampling tube body 1；
C, active carbon sampling tube body 1 is rested on into sample space 10min；
D, then one end plastics cap bag 5 that the active carbon sampling tube body 1 equipped with sampled air is equipped with air inlet 7 is covered,
Then active carbon sampling tube body 1 is placed into active carbon sampling tube body holder.
The beneficial effects of the present invention are:
(1) it is equipped with spring wire in the outside of active carbon, active carbon is fixed by spring wire, avoids active carbon and glass
The elasticity of cotton is bad, controls the throughput size of glass tube and stablizes；
(2) it is equipped with air inlet at the both ends of glass tube, is equipped with plastics cap bag at air inlet, is sealed by high-temperature oxygen spray head fire
Mouthful, so that active carbon sampling tube body is kept good air-tightness, and not easily to fall off, is not present or has an impact the substance of measurement；
(3) present invention has high efficiency sampling, while not influencing sampled data.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of solvent desorption type active carbon sampling pipe, including active carbon sampling tube body (1), it is characterised in that: the activity
Charcoal samples tube body (1) and is equipped with glass tube (4), and the bosom of the glass tube (4) is equipped with mineral wool (3), the glass
The upper end of cotton (3) is equipped with active carbon (2) 100mg, and the lower section of the mineral wool (3) is equipped with active carbon (2) 50mg, the active carbon
(2) outside is equipped with spring steel wire, and the top and bottom of the glass tube (4) are equipped with plastics cap bag (5).
2. a kind of solvent desorption type active carbon sampling pipe according to claim 1, it is characterised in that: the glass tube (5)
Outer dia be 5.5cm-6cm, glass tube (5) inside diameter is 3.5cm-4.0cm, the length of glass tube (5) is 80cm, institute
The both ends for stating glass tube (5) are equipped with cap bag interface (6), and the cap bag interface (6) is equipped with plastics cap bag (5).
3. a kind of solvent desorption type active carbon sampling pipe according to claim 1, it is characterised in that: the glass tube (4)
One end be equipped with air inlet (7), the other end of glass tube (4) seals.
4. a kind of solvent desorption type active carbon sampling pipe according to claim 1, it is characterised in that: the active carbon (2)
Using 60-80 purpose.
5. a kind of solvent desorption type active carbon sampling pipe according to claim 1, it is characterised in that: the active carbon sampling
Tube body (1) is sealed using high-temperature oxygen spray head fire.
6. a kind of solvent desorption type active carbon sampling pipe according to claim 1, it is characterised in that: the active carbon sampling
For tube body (1) under 200mL/min flow, the aeration resistance of activated carbon tube (2) should be 2 ~ 4kPa.
7. a kind of solvent desorption type active carbon sampling pipe according to claim 1, it is characterised in that: the active carbon sampling
Tube body (1) is lower than detection limit, the desorption efficiency > 99.6% of benzene, the desorption efficiency of toluene to benzene, toluene and dimethylbenzene background values
> 98%, the desorption efficiency > 96% of dimethylbenzene, 100mg active carbon benzene break through volume > 7mg, toluene break through volume > 13.1mg,
Dimethylbenzene, which penetrates, holds > 10.8mg.
8. realize a kind of solvent desorption type active carbon sampling pipe described in claim 1, the method for sampling the following steps are included:
A, active carbon is sampled on tube body (1) first, the plastics cap bag (5) that glass tube (4) is equipped with air inlet (7) one end is taken
It goes；
B, by active carbon sampling tube body (1) in the gaseous environment that samples of needs, make gas with 200mL/min flow standard into
Enter the inside of active carbon sampling tube body (1)；
C, active carbon sampling tube body (1) is rested on into sample space 10min；
D, the active carbon equipped with sampled air is then sampled into the one end of tube body (1) equipped with air inlet (7) with plastics cap bag (5)
It covers, then active carbon sampling tube body (1) is placed into active carbon sampling tube body holder.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810721163.7A CN109060455A (en) | 2018-07-04 | 2018-07-04 | A kind of solvent desorption type active carbon sampling pipe and its method of sampling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810721163.7A CN109060455A (en) | 2018-07-04 | 2018-07-04 | A kind of solvent desorption type active carbon sampling pipe and its method of sampling |
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| Publication Number | Publication Date |
|---|---|
| CN109060455A true CN109060455A (en) | 2018-12-21 |
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|---|---|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779776A (en) * | 2019-11-06 | 2020-02-11 | 广东省职业病防治院(广东省职业卫生检测中心) | Air sampling tube for collecting chlorobenzene compounds |
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| CN204142530U (en) * | 2014-10-17 | 2015-02-04 | 南京迪天环境技术有限公司 | A kind of novel dissolvent desorb mixed type VOC collection tube |
| CN106248839A (en) * | 2016-08-15 | 2016-12-21 | 上海申丰地质新技术应用研究所有限公司 | The standard substance of compound fragrant hydrocarbon detection in workplace air |
| CN106769256A (en) * | 2017-01-10 | 2017-05-31 | 新疆大学 | Gas tracer sampling apparatus and Oilfield gas tracer acquisition testing method |
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2018
- 2018-07-04 CN CN201810721163.7A patent/CN109060455A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204142530U (en) * | 2014-10-17 | 2015-02-04 | 南京迪天环境技术有限公司 | A kind of novel dissolvent desorb mixed type VOC collection tube |
| CN106248839A (en) * | 2016-08-15 | 2016-12-21 | 上海申丰地质新技术应用研究所有限公司 | The standard substance of compound fragrant hydrocarbon detection in workplace air |
| CN106769256A (en) * | 2017-01-10 | 2017-05-31 | 新疆大学 | Gas tracer sampling apparatus and Oilfield gas tracer acquisition testing method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779776A (en) * | 2019-11-06 | 2020-02-11 | 广东省职业病防治院(广东省职业卫生检测中心) | Air sampling tube for collecting chlorobenzene compounds |
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Application publication date: 20181221 |