CN104771935B - A kind of solid-phase extraction device - Google Patents
A kind of solid-phase extraction device Download PDFInfo
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- CN104771935B CN104771935B CN201510163340.0A CN201510163340A CN104771935B CN 104771935 B CN104771935 B CN 104771935B CN 201510163340 A CN201510163340 A CN 201510163340A CN 104771935 B CN104771935 B CN 104771935B
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- filtering tank
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- external adapter
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- phase extraction
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Abstract
The present invention relates to a kind of solid-phase extraction device, it includes the SPE unit being sequentially connected in series the sampling pump of connection, Pressure gauge, flowmeter and vertical setting；SPE unit includes the most external adapter, external adapter, a connector and two filtering tanks on one；Under the top of external adapter fix the bottom connecting the first filtering tank, the top side detachable of the first filtering tank connects the bottom of connector, the top side detachable of connector connects the bottom of the second filtering tank, and the bottom connecting upper external adapter is fixed at the top of the second filtering tank；Under external adapter base and upper external adapter top extend through and a mozzle be set；First filtering tank, the second filtering tank and connector internal run-through, connector inwall arranges the stopper slot of a ring shape, and stopper slot sets gradually a non-return compressing tablet, a solid-phase extraction membrane and a supporting screening plate from top to bottom.The present invention is the most simple to operate, convenient transportation, and can be pre-processed by water sample in sampling position.
Description
Technical field
The present invention relates to analytical chemistry field, especially with regard to a kind of solid-phase extraction device.
Background technology
In Sample Pretreatment Technique, the analysis of trace organic substance in surface water and underground water is typically: first,
By in the water sampling of 1～5 liter to water sample bottle；Then, water sample bottle is transported to laboratory；Finally, water sample is carried out
Filter, precipitate, and by solid phase extraction techniques, the trace organic substance in water sample is enriched with.It should be evident that this
Kind of mode of operation at least exist of both shortcoming: be on the one hand not only troublesome poeration, and not readily transportable；Another
Aspect is owing to being affected by illumination and temperature during transport, it is easy to makes water sample characteristic change, enters
And affect the accuracy of experiment analysis results.
Summary of the invention
For the problems referred to above, it is an object of the invention to provide that one is the most simple to operate, convenient transportation, and can be
Water sample is carried out the solid-phase extraction device pre-processed by sampling position.
For realizing above-mentioned technical purpose, the present invention takes techniques below scheme: a kind of solid-phase extraction device, it includes one
Sampling pump, a Pressure gauge, flow meters and the SPE unit of a vertical setting；Described sampling pump, Pressure gauge and
Flowmeter is sequentially connected in series by pipeline；Described SPE unit includes the most external adapter, external suitable on
Orchestration, a connector and two filtering tanks；Under described, the bottom connecting the first filtering tank is fixed at the top of external adapter,
The top side detachable of described first filtering tank connects the bottom of described connector, and the top side detachable of described connector connects
The bottom of the second filtering tank, the bottom connecting described external adapter is fixed at the top of the second filtering tank；Described lower outside
Connecing adapter base to run through and arrange one for the mozzle connected with described flowmeter, described external adapter top is also
Run through and arrange one for importing the described mozzle of water sample；Inside described first filtering tank, the second filtering tank and connector
Through, described connector inwall arranges the stopper slot of a ring shape, described stopper slot sets gradually one from top to bottom
Non-return compressing tablet, a solid-phase extraction membrane and a supporting screening plate, wherein, if being respectively provided with on described supporting screening plate and non-return compressing tablet
Dry through hole.
The filter element of more than one-level, every one-level institute is also set up between described second filtering tank and described external adapter
Stating and be sequentially connected in series between filter element, filter element described in every one-level all includes a connector and a filtering tank；The
The filtering tank of filter element described in one-level fixes the bottom connecting described external adapter, filters single described in afterbody
The connector of unit removably connects the top of described second filtering tank；It is respectively provided with on the connector of each described filter element
One circle annular spacing groove, each described annular spacing groove set gradually from top to bottom a non-return compressing tablet, a filter screen and
One supporting screening plate, the aperture of each described filter screen diminishes the most successively.
Under described, external adapter and upper external adapter all use lid slab structure.
Under described, the outer surface of external adapter, upper external adapter and connector all uses hexagonal structure.
Described external adapter, upper external adapter, filtering tank, connector, supporting screening plate and non-return compressing tablet all according to
U.S. EPA standard uses 316 stainless steels or PTFE processing and fabricating.
Due to the fact that and take above technical scheme, it has the advantage that 1, due to the fact that can by solid-phase extraction membrane
Releasably it is arranged in connector, and water sample can pass through solid-phase extraction membrane uniformly, enabling in sampling position pair
After water sample pre-processes simply, only take solid-phase extraction membrane to laboratory and be analyzed, the most simple to operate,
And convenient transportation, it is effectively saved experimental cost and experimental period.2, due to the fact that the filtration of more than one-level is set
Unit, and the aperture arranging filter screen diminishes the most successively, is not only able to effectively filter out in water sample
Particle, and particle can be collected simultaneously, facilitate laboratory to be acquired particulate matter analyzing.3, this
Bright by solid-phase extraction membrane top series connection one-level more than filter element, the most effectively filter out water sample arrives impurity,
It is easy to obtain experimental data accurately, and effectively protects solid-phase extraction membrane.4, due to the fact that and each is specifically set
Connected mode between parts and the contour structures of all parts so that install with dismantle the most very convenient.5, this
The bright Material Processing owing to arranging all parts is all according to U.S. EPA standard method requirement, enabling be applicable to corruption
Erosion property environment, effectively extends the service life of the present invention.Present configuration is simple, be easy to carry, and can extensively apply
In the pretreatment of water sample early stage.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the detonation configuration schematic diagram of Fig. 1；
Fig. 3 is the structural representation that the present invention connects with filter element.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is carried out detailed description.It should be appreciated, however, that being provided only more of accompanying drawing
Understanding the present invention well, they should not be interpreted as limitation of the present invention.In describing the invention, it is to be understood that
, term " first ", " second " etc. be only used for describe purpose, and it is not intended that instruction or hint phase
To importance.
As shown in Figure 1 and Figure 2, the solid-phase extraction device of the present invention includes sampling pump 1, Pressure gauge 2, flow
Meter 3 and the SPE unit 4 of a vertical setting；Sampling pump 1, Pressure gauge 2 and flowmeter 3 are gone here and there successively by pipeline
Connection connects；SPE unit 4 includes external adapter 42, a connector 43 on the most external adapter 41,
With two filtering tanks；Under the top of external adapter 41 fix the bottom connecting the first filtering tank 44, the first filtering tank 44
Top side detachable connect connector 43 bottom, the top side detachable of connector 43 connects the end of the second filtering tank 45
Portion, the bottom connecting upper external adapter 42 is fixed at the top of the second filtering tank 45；Under pass through bottom external adapter 41
Wearing and put one for the mozzle 5 connected with flowmeter 3, upper external adapter 42 top also extends through and arranges one for leading
Enter the mozzle 5 of water sample；First filtering tank the 44, second filtering tank 45 and connector 43 internal run-through, connector 43
One circle annular spacing groove 431 is set on inwall, stopper slot 431 sets gradually a non-return compressing tablet 432, from top to bottom
Solid-phase extraction membrane 433 and a supporting screening plate 434, wherein, if being respectively provided with on non-return compressing tablet 432 and supporting screening plate 434
Dry through hole.
In a preferred embodiment, between the second filtering tank 45 and upper external adapter 42, one-level can also be set
Above filter element 6, is sequentially connected in series between every one-level filter element 6, and every one-level filter element 6 all includes
A connector and a filtering tank；Connector in filter element 6 and filtering tank respectively with in above-mentioned solid phase extraction cells 4
Connector 43 the most identical with first, second filtering tank structure, describe for convenience, by the connection in filter element 6
Device is defined as the second connector 61, and the filtering tank in filter element 6 is defined as the 3rd filtering tank 62.Wherein, first
The 3rd fixing bottom connecting upper external adapter 42 of filtering tank 62 of level filter element 6, afterbody filter element
Second connector 61 of 6 removably connects the top of the second filtering tank 45；It is respectively provided with one on each second connector 61
Circle annular spacing groove, each annular spacing groove sets gradually a non-return compressing tablet, a filter screen and a support from top to bottom
Sieve plate, the aperture of each filter screen diminishes the most successively, to realize the mesh of the classified filtering of filter element
's.
In a preferred embodiment, under, external adapter 41 and upper external adapter 42 all can use cover plate shape
Structure.
In a preferred embodiment, for the ease of install with dismounting, under external adapter 41, upper external adapter
42 and the outer surface of connector 43 all can use hexagonal structure；Fixing connects and removably connect all can distinguish
Use threaded.
In a preferred embodiment, in order to increase the service life, be suitable for corrosive atmosphere, under external adapter 41,
Upper external adapter 42, each filtering tank, connector 43, supporting screening plate 434 and non-return compressing tablet 432 all can be according to
U.S. EPA standard uses 316 stainless steels or PTFE processing and fabricating.
Solid-phase extraction device using method of the present invention, it comprises the following steps:
(1) according to on-the-spot water source contain particulate matter number determine and need the progression of cascade filtration unit 6, and go here and there successively
Connection connects all parts；
(2) mozzle 5 connected on upper external adapter 42 is sunk to water source, and open sampling pump 1；First,
Water sample sequentially passes through the filter screen arranged on every one-level filter element 6 from top to bottom, and classified filtering falls particle in water sample
The particulate matter making particle diameter different while thing concentrates on the filter screen of different pore size；Then, water sample is through solid phase
Spe membrane 433, the trace organic substance in water sample is enriched with by solid-phase extraction membrane 433；Finally, water sample flows successively through
Discharge after flowmeter 3, Pressure gauge 2 and sampling pump 1, when water sample flows through flowmeter 3 and Pressure gauge 2, flowmeter 3
Monitor and record flow and pressure with Pressure gauge 2 respectively, when flow reaches setting value, close sampling pump 1, take out
And preserve solid-phase extraction membrane 433, a complete water sample preprocessing process；
(3) when needs carry out the experiment of big flow multiple repairing weld, the filter screen that can the most more renew and SPE
After film 433, circulate said process.
Above-described embodiment is merely to illustrate the present invention, and the structure of the most each parts, connected mode and manufacture craft etc. are all
Can be varied from, every equivalents carried out on the basis of technical solution of the present invention and improvement, the most should not arrange
In addition in protection scope of the present invention.
Claims (6)
1. a solid-phase extraction device, it is characterised in that: it includes a sampling pump, a Pressure gauge, flow meters and
The SPE unit of vertical setting；Described sampling pump, Pressure gauge and flowmeter are sequentially connected in series by pipeline；Institute
State SPE unit and include the most external adapter, external adapter, a connector and two filtering tanks on one；Described
Under the top of external adapter fix the bottom connecting the first filtering tank, the top side detachable of described first filtering tank connects
The bottom of described connector, the top side detachable of described connector connects the bottom of the second filtering tank, the second filtering tank
The bottom connecting described external adapter is fixed at top；Under described external adapter base run through arrange one for institute
Stating the mozzle of flowmeter connection, described external adapter top also extends through and arranges one for importing the mozzle of water sample；
Described first filtering tank, the second filtering tank and connector internal run-through, described connector inwall arranges a ring shape
Stopper slot, described stopper slot sets gradually a non-return compressing tablet, a solid-phase extraction membrane and a supporting screening plate from top to bottom,
Wherein, described supporting screening plate and non-return compressing tablet are respectively provided with some through holes.
2. as claimed in claim 1 a kind of solid-phase extraction device, it is characterised in that: described second filtering tank with described on
Also set up the filter element of more than one-level between external adapter, be sequentially connected in series between filter element described in every one-level,
Filter element described in every one-level all includes a connector and a filtering tank；The filtering tank of filter element described in the first order is fixed
Connecting the bottom of described external adapter, the connector of filter element described in afterbody removably connects described second
The top of filtering tank；A circle annular spacing groove, each described annular it is respectively provided with on the connector of each described filter element
Stopper slot sets gradually a non-return compressing tablet, a filter screen and a supporting screening plate, each described filter screen from top to bottom
Aperture diminish the most successively.
3. as claimed in claim 1 a kind of solid-phase extraction device, it is characterised in that: under described external adapter and upper outside
Connect adapter and all use lid slab structure.
4. as claimed in claim 2 a kind of solid-phase extraction device, it is characterised in that: under described external adapter and upper outside
Connect adapter and all use lid slab structure.
5. a kind of solid-phase extraction device, it is characterised in that: external under described
The outer surface of adapter, upper external adapter and connector all uses hexagonal structure.
6. a kind of solid-phase extraction device, it is characterised in that: external under described
Adapter, upper external adapter, filtering tank, connector, supporting screening plate and non-return compressing tablet are all according to U.S. EPA standard
Use 316 stainless steels or PTFE processing and fabricating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510163340.0A CN104771935B (en) | 2015-04-08 | 2015-04-08 | A kind of solid-phase extraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510163340.0A CN104771935B (en) | 2015-04-08 | 2015-04-08 | A kind of solid-phase extraction device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104771935A CN104771935A (en) | 2015-07-15 |
| CN104771935B true CN104771935B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510163340.0A Active CN104771935B (en) | 2015-04-08 | 2015-04-08 | A kind of solid-phase extraction device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226144B (en) * | 2016-07-15 | 2019-07-26 | 浙江省海洋水产研究所 | A kind of pre-treatment of water sample scene and organic matter enriching apparatus |
| CN115639337A (en) * | 2022-12-23 | 2023-01-24 | 国科大杭州高等研究院 | Environmental water sampling device with in-situ enrichment performance and sampling method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1649911A2 (en) * | 2004-10-19 | 2006-04-26 | Agilent Technologies, Inc. | Solid phase extraction |
| CN201681012U (en) * | 2010-04-27 | 2010-12-22 | 天津市欧诺仪器仪表有限公司 | Quick environmental water sample virus enriching device |
| CN201799135U (en) * | 2010-08-23 | 2011-04-20 | 东南大学 | Split nano-fiber solid phase extraction column |
| CN202682838U (en) * | 2012-05-09 | 2013-01-23 | 中国科学院寒区旱区环境与工程研究所 | Solid-phase extraction film disc device for gathering trace organic pollutants in glacier in field |
| CN203663496U (en) * | 2012-12-27 | 2014-06-25 | 天津工业大学 | Quick and convenient solid-phase extraction device using functional non-woven fabric membrane |
| CN204671937U (en) * | 2015-04-08 | 2015-09-30 | 北京普立泰科仪器有限公司 | Solid-phase extraction device |
-
2015
- 2015-04-08 CN CN201510163340.0A patent/CN104771935B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1649911A2 (en) * | 2004-10-19 | 2006-04-26 | Agilent Technologies, Inc. | Solid phase extraction |
| CN201681012U (en) * | 2010-04-27 | 2010-12-22 | 天津市欧诺仪器仪表有限公司 | Quick environmental water sample virus enriching device |
| CN201799135U (en) * | 2010-08-23 | 2011-04-20 | 东南大学 | Split nano-fiber solid phase extraction column |
| CN202682838U (en) * | 2012-05-09 | 2013-01-23 | 中国科学院寒区旱区环境与工程研究所 | Solid-phase extraction film disc device for gathering trace organic pollutants in glacier in field |
| CN203663496U (en) * | 2012-12-27 | 2014-06-25 | 天津工业大学 | Quick and convenient solid-phase extraction device using functional non-woven fabric membrane |
| CN204671937U (en) * | 2015-04-08 | 2015-09-30 | 北京普立泰科仪器有限公司 | Solid-phase extraction device |
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| Publication number | Publication date |
|---|---|
| CN104771935A (en) | 2015-07-15 |
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