CN208459066U - A kind of Passive sampler for the acquisition of hydrophily organic pollutant - Google Patents
A kind of Passive sampler for the acquisition of hydrophily organic pollutant Download PDFInfo
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- CN208459066U CN208459066U CN201821120963.5U CN201821120963U CN208459066U CN 208459066 U CN208459066 U CN 208459066U CN 201821120963 U CN201821120963 U CN 201821120963U CN 208459066 U CN208459066 U CN 208459066U
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- ring flange
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- organic pollutant
- sieve
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Abstract
The utility model discloses a kind of Passive samplers for the acquisition of hydrophily organic pollutant, the sampler includes outer framework and sieve, the outer framework is the ring flange of ellipse, threaded hole there are four being opened up on the ring flange, thumb screw is installed, the thumb screw end is socketed with wing nut in the threaded hole；The sieve is stainless steel mesh, and in ring flange center, there are two the sieves, is respectively overlay in the inner surface of ring flange, and be placed with adsorbent material among two sieves for setting.The sampler of the utility model has unique configuration design, it is made to be specially adapted for sewage conduct, underground water well, the passive sampling of agricultural irrigation irrigation canals and ditches and water quality monitoring and sampling；Using the design of assembling easy to disassemble, be conducive to replace adsorbent material for different target pollutant, improve the accumulation ability of sampler, reduce interference, reduce cost；It can avoid the interference of suspended matter, planktonic organism to sampling in water, enhance the degree of purification of sample.
Description
Technical field
The utility model belongs to environmental pollution acquisition technique field, and in particular to one kind is adopted for hydrophily organic pollutant
The Passive sampler of collection.
Background technique
Hydrophily organic pollutant refers to that one kind present in environment has the organic matter of polar group, has to water larger
Affinity, be easily soluble in water.Hydrophilic radical is usually had on this kind of contaminant molecule, such as hydroxyl, carboxyl, amino, sulphur
Acidic group etc. easily and Hydrogenbond forms the physical property of of short duration bond by hydrogen bond and water.The water environment of people's extensive concern is dirty
Object is contaminated, hydrophily organic pollutant, such as organo-chlorine pesticide class, antibiotics, Endocrine Disruptors are largely belonged to
Deng.These pollutants usually have apparent bio-toxicity, influence the existence and breeding of aquatile in water environment.Pass through
Food chain and drinking-water enter human body, can cause the long-term health effect such as carcinogenic, teratogenesis, mutagenesis.Therefore, this pollutant is always
It is the emphasis of environmental area research.
In to environment in the research of hydrophily organic pollutant, sample acquisition is an important link.It continuously improves
Sampling technique and equipment, provide strong technology for the Exploration on mechanism of laboratory research and detection contaminant transportation conversion and protect
Barrier, promotes the sustainable development of Research of Environmental Sciences.
Traditional environmental water sample acquisition technique is generally divided into acquisition and two class of automatic collection manually.Manual acquisition technique
Sampling apparatus used mainly has two class of vertical type and horizontal type, with the water inertia material such as stainless steel, polytetrafluoroethylene (PTFE) or organic glass
Material is material, is made of sampling tank, two panels semicircle upper cover and movable floor.Automatic acquisition technology is used can be with the electronic of time switch
Pumping water sampling, sampling apparatus are made of electronic sampling pump, conduit, stainless steel probe and sample storage bottle.These two types of sampling techniques, all
It is to belong to active sampling technique, needs sample collector on duty, automatic sampler also wants additional power source.This kind of technology is suitable for short-term
Instantaneous sampling monitors the long-term trend of water environment pollution, and since human cost consumption is big, this kind of active sampling technique is not
It is applicable in.
In recent years, with the increase of attention and improvement demand for water environment pollution, people increasingly pay close attention to water environment
The Secular Variation Tendency of quality condition.There is an urgent need to develop long-term sampling monitoring demand is suitable for out, it is not required to human attendance, is not required to
Power supply, low-cost novel sampling technology and equipment.Therefore, passive sampling technology is gradually developed.
Current existing passive sampling apparatus specifically includes that Passive diffusion bag sampler (Passive Diffusion
Bag Samplers, PDBs), film diffusion balanced sample device (Diffusive Equilibrium in Thin Films
DET), solid phase microextraction sampling device (Solid-phase Microextraction, SPME), semi-permeable membrane passive sampling apparatus
(Semipermeable Membrane Devices, SPMD) etc., these passive sampling apparatus are suitable for the organic dirt of hydrophobicity more
The acquisition for contaminating object and volatile organic matter, is not suitable for hydrophily organic pollutant in water environment.
Utility model content
In view of the deficiencies of the prior art, the purpose of this utility model is to provide one kind adopts for hydrophily organic pollutant
The Passive sampler of collection, using the dynamics diffusion of hydrophily organic pollutant and selective enrichment basic principle, with realization pair
The passive acquisition of hydrophily organic pollutant in water environment.
In order to achieve the above purposes, the technical solution adopted by the utility model is:, and one kind is adopted for hydrophily organic pollutant
The Passive sampler of collection, including outer framework and sieve, the outer framework is the ring flange of ellipse, using stainless steel material system
At being opened up on the ring flange there are four threaded hole, be equipped with thumb screw, the thumb screw end sleeve in the threaded hole
It is connected to wing nut；The sieve is stainless steel mesh, and in ring flange center, there are two the sieves, is respectively overlay in for setting
The inner surface of ring flange, and adsorbent material is placed among two sieves.
Further, four threaded holes are uniformly arranged along the length diameter both ends of ring flange.
Further, the long side outer diameter of the ring flange is 70mm, and internal diameter 33mm, short side outer diameter is 55mm, and internal diameter is
33mm, with a thickness of 3mm.
Further, the sieve is circular configuration, and diameter is less than the outer diameter of ring flange and is greater than the internal diameter of ring flange,
Specially diameter 45mm.
Further, the sieve is 300 mesh, 48 μm of aperture.
Further, the adsorbent material is that MCX mixed type cation exchanges reverse phase absorption agent, loading 1g.
Compared with prior art, the utility model has the beneficial effects that
1, ring flange is designed as elliptical shape, and convenient to place and take out in sewage conduct, unique configuration design makes it
It is specially adapted for sewage conduct, underground water well, the passive sampling of agricultural irrigation irrigation canals and ditches and water quality monitoring and sampling；
2, stainless steel mesh substitution has common micropore diffusion film (such as poly (ether sulfone) film), pole in Passive sampler at present
Sampling efficiency is improved greatly；
3, using the design of assembling easy to disassemble, be conducive to replace adsorbent material for different target pollutant, raising is adopted
The accumulation ability of sample device reduces interference, reduces cost；
4, the degree of purification of sample can be enhanced to avoid the interference of suspended matter, planktonic organism to sampling in water.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model Passive sampler.
Fig. 2 is the structural schematic diagram of the utility model ring flange.
Fig. 3 is the structural schematic diagram of the utility model wing screw.
Fig. 4 is the structural schematic diagram of the utility model wing nut.
In figure: 1- ring flange, 2- sieve, 3- adsorbent, 4- threaded hole, 5- wing screw, 6- wing nut.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is described in further detail the utility model.It is described below for taking off
Reveal the utility model so that those skilled in the art can be realized the utility model.Preferred embodiment in being described below is only used as
Citing, it may occur to persons skilled in the art that other obvious modifications.
It is as shown in Figs 1-4: a kind of Passive sampler for the acquisition of hydrophily organic pollutant, including outer framework and sieve
2, the outer framework is the ring flange 1 of ellipse, is made of stainless steel, and the long side outer diameter of the ring flange 1 is 70mm,
Internal diameter is 33mm, and short side outer diameter is 55mm, with a thickness of 3mm；Threaded hole 4 there are four being opened up on the ring flange 1, four spiral shells
Pit 4 is uniformly arranged along the length diameter both ends of the ring flange 1 of ellipse, and thumb screw 5, institute are equipped in the threaded hole 4
It states 5 end of thumb screw and is socketed with wing nut 6；The sieve 2 is made of 304 stainless steel materials, and the sieve 2 is 300
Mesh, 48 μm of aperture can filter out suspended particulate common in water, and the setting of sieve 2, in 1 center of ring flange, sieve 2 is circle
Structure, diameter are less than the outer diameter of ring flange 1 and are greater than the internal diameter of ring flange 1, and specially diameter 45mm, there are two the sieves 2,
It is respectively overlay in the inner surface of ring flange 1, and is placed with the MCX mixed type cation that loading is 1g among two sieves 2 and hands over
Change reverse phase absorption agent 3.
Using the method for sampling of the Passive sampler of hydrophily organic pollutant described in the utility model acquisition, including with
Lower step:
(1) weigh 1g MCX mixed type cation exchange reverse phase absorption agent, before use, successively with methanol, ultrapure water,
The hydrochloric acid solution of pH=2 is activated, and the adsorbent 3 after activation is placed between two stainless steel mesh；
(2) two stainless steel mesh 2 are adhered to respectively on the inner wall of steel flange disk 1, recycle wing screw 5 will
Ring flange 1 seals, and screws on wing nut 6 in the end of wing screw 5, forms Passive sampler；
(3) Passive sampler for fixing sealing, is placed in city sewer well；
(4) Passive sampler is placed in sewer well 24 hours, makes the abundant adsorbed target pollutant of Passive sampler；
Terminate sampling after (5) 24 hours, Passive sampler is taken out, sampler is rinsed with ultrapure water；
(6) it rinses after drying, ring flange 1 is opened, take out the exchange reverse phase absorption agent of MCX mixed type cation and be placed in cleaning
Glass funnel in, to be adsorbed with target contaminant MCX mixed type cation exchange reverse phase absorption agent elute；
(7) technical conditions eluted: glass funnel is placed on funnel stand, connects a clean beaker below.To glass
The methanol of 10mL chromatographically pure is slowly added in glass funnel, the speed control of addition about elutes 10 minutes in 1mL/min；It adds
The methanolic ammonia solution that 6mL concentration is 5%, the speed control of addition about elute 6 minutes in 1mL/min；
(8) liquid eluted twice is mixed, obtains eluent, experimental analysis is carried out to eluent.
Conventional microporous diffusion film (such as poly (ether sulfone) film) is changed to stainless steel sieve by Passive sampler described in the utility model
Net greatly improves the efficiency of passive sampling, reduces costs.
The adsorbance of Passive sampler described in the utility model changes with time situation: in sewer well while putting
Multiple Passive samplers are set, are taken out after 2,4,8,10,16,24 hours respectively, the target contaminant of its absorption is measured
Amount.Measurement result is shown: the adsorbance of Passive sampler and standing time are presented good linear relationship, sampler place when
Between it is longer, adsorbance is higher.The experimental results showed that the Passive sampler has good application performance.
The MCX mixed type cation exchange reverse phase absorption agent that the present invention selects is commercial product.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only the principles of the present invention, the utility model also has respectively on the premise of not departing from the spirit and scope of the utility model
Kind changes and improvements, these changes and improvements are both fallen in the range of claimed invention.The requires of the utility model
Protection scope defined by appended claims and its equivalent.
Claims (6)
1. a kind of Passive sampler for the acquisition of hydrophily organic pollutant, including outer framework and sieve (2), feature exists
In the ring flange (1) that: the outer framework is ellipse, be made of stainless steel, opened up on the ring flange (1) there are four
Threaded hole (4), the threaded hole (4) is interior to be equipped with thumb screw (5), and thumb screw (5) end is socketed with wing nut
(6)；The sieve (2) is stainless steel mesh, and in ring flange (1) center, there are two the sieves (2), is respectively overlay in for setting
The inner surface of ring flange (1), and adsorbent (3) are placed among two sieves (2).
2. a kind of Passive sampler for the acquisition of hydrophily organic pollutant according to claim 1, it is characterised in that:
Four threaded holes (4) are uniformly arranged along ring flange (1) length diameter both ends.
3. a kind of Passive sampler for the acquisition of hydrophily organic pollutant according to claim 2, it is characterised in that:
Ring flange (1) the long side outer diameter of the ellipse is 70mm, and internal diameter 33mm, short side outer diameter is 55mm, with a thickness of 3mm.
4. a kind of Passive sampler for the acquisition of hydrophily organic pollutant according to claim 3, it is characterised in that:
The sieve (2) is circular configuration, and diameter is less than the outer diameter of ring flange (1) and is greater than the internal diameter of ring flange (1), specially directly
Diameter 45mm.
5. a kind of Passive sampler for the acquisition of hydrophily organic pollutant according to claim 4, it is characterised in that:
The sieve (2) is 300 mesh, 48 μm of aperture.
6. a kind of Passive sampler for the acquisition of hydrophily organic pollutant according to claim 1-5,
Be characterized in that: the adsorbent (3) is that MCX mixed type cation exchanges reverse phase absorption agent, loading 1g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821120963.5U CN208459066U (en) | 2018-07-16 | 2018-07-16 | A kind of Passive sampler for the acquisition of hydrophily organic pollutant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821120963.5U CN208459066U (en) | 2018-07-16 | 2018-07-16 | A kind of Passive sampler for the acquisition of hydrophily organic pollutant |
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| CN208459066U true CN208459066U (en) | 2019-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821120963.5U Active CN208459066U (en) | 2018-07-16 | 2018-07-16 | A kind of Passive sampler for the acquisition of hydrophily organic pollutant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760392A (en) * | 2018-07-16 | 2018-11-06 | 未名环境分子诊断（常熟）有限公司 | A kind of Passive sampler and the method for sampling for the acquisition of hydrophily organic pollution |
| EP3816605A1 (en) * | 2019-10-31 | 2021-05-05 | Arcadis U.S., Inc. | Passive sampler |
-
2018
- 2018-07-16 CN CN201821120963.5U patent/CN208459066U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760392A (en) * | 2018-07-16 | 2018-11-06 | 未名环境分子诊断（常熟）有限公司 | A kind of Passive sampler and the method for sampling for the acquisition of hydrophily organic pollution |
| EP3816605A1 (en) * | 2019-10-31 | 2021-05-05 | Arcadis U.S., Inc. | Passive sampler |
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