CN104771935A - Solid-phase extraction device - Google Patents
Solid-phase extraction device Download PDFInfo
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- CN104771935A CN104771935A CN201510163340.0A CN201510163340A CN104771935A CN 104771935 A CN104771935 A CN 104771935A CN 201510163340 A CN201510163340 A CN 201510163340A CN 104771935 A CN104771935 A CN 104771935A
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- external adapter
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- phase extraction
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Abstract
The invention relates to a solid-phase extraction device. The solid-phase extraction device comprises a sampling pump, a pressure meter, a flow meter and a vertically arranged solid-phase extraction unit which are connected with one another in series, wherein the solid-phase extraction unit comprises a lower external adapter, an upper external adapter, a connector and two filtration tanks; the top of the lower external adapter is fixedly connected with the bottom of a first filtration tank; the top of the first filtration tank is detachably connected with the bottom of the connector; the top of the connector is detachably connected with the bottom of a second filtration tank; the top of the second filtration tank is fixedly connected with the bottom of the upper external adapter; the bottom of the lower external adapter and the top of the upper external adapter penetrate through a flow guide pipe; the first filtration tank, the second filtration tank and the connector are internally connected with one another; annular limiting slots are formed in the periphery of the inner wall of the connector; a non-return pressing sheet, a solid-phase extraction film and a support screen plate are arranged in sequence from top to bottom of each limiting slot. The solid-phase extraction device is easy to operate and convenient to transport, and is capable of preprocessing water samples on sampling sites.
Description
Technical field
The present invention relates to analytical chemistry field, particularly about a kind of solid-phase extraction device.
Background technology
In Sample Pretreatment Technique, for trace organic substance in surface water and underground water analysis normally: first, by the water sampling of 1 ~ 5 liter in water sample bottle; Then, water sample bottle is transported to laboratory; Finally, water sample is filtered, precipitates, and by solid phase extraction techniques, the trace organic substance in water sample is carried out enrichment.Apparently, this kind of mode of operation at least deposits shortcoming both ways: be not only troublesome poeration on the one hand, and be not easy to transport; Be on the other hand in the process of transport owing to being subject to the impact of light and temperature, be easy to water sample characteristic is changed, and then affect the accuracy of experiment analysis results.
Summary of the invention
For the problems referred to above, the object of this invention is to provide one not only simple to operate, convenient transportation, and in sampling position, water sample can be carried out pretreated solid-phase extraction device.
For realizing above-mentioned technical purpose, the present invention takes following technical scheme: a kind of solid-phase extraction device, and it comprises the SPE unit of a sampling pump, a Pressure gauge, flow meters and a vertical setting; Described sampling pump, Pressure gauge and flowmeter are sequentially connected in series by pipeline; Described SPE unit comprises external adapter, a connector and two filtering tanks on external adapter; The top of described lower external adapter is fixedly connected with the bottom of 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, and the top of the second filtering tank is fixedly connected with the bottom of described external adapter; Described lower external adapter base runs through and arranges a mozzle for being communicated with described flowmeter, and described external adapter top also runs through and arranges one for importing the described mozzle of water sample; Described first filtering tank, the second filtering tank and connector internal run-through, described connector inwall is arranged the stopper slot of a ring shape, described stopper slot sets gradually from top to bottom a non-return compressing tablet, a solid-phase extraction membrane and a supporting screening plate, wherein, described supporting screening plate and non-return compressing tablet all arrange some through holes.
Also arrange the filter element of more than one-level between described second filtering tank and described external adapter, be sequentially connected in series described in every one-level between filter element, filter element described in every one-level includes a connector and a filtering tank; The filtering tank of filter element described in the first order is fixedly connected with the bottom of described external adapter, and the connector of filter element described in afterbody removably connects the top of described second filtering tank; The connector of filter element described in each is all arranged a circle annular spacing groove, annular spacing groove described in each sets gradually a non-return compressing tablet, a filter screen and a supporting screening plate from top to bottom, and described in each, the aperture of filter screen diminishes from top to bottom step by step successively.
Described lower external adapter and upper external adapter all adopt lid slab structure.
The outer surface of described lower external adapter, upper external adapter and connector all adopts hexagonal structure.
Described external adapter, upper external adapter, filtering tank, connector, supporting screening plate and non-return compressing tablet all adopt 316 stainless steels or PTFE processing and fabricating according to U.S. EPA standard.
The present invention is owing to taking above technical scheme, it has the following advantages: 1, the present invention is owing to being removably disposed in connector by solid-phase extraction membrane, and water sample can pass through solid-phase extraction membrane uniformly, make it possible to after pretreatment is simply carried out to water sample in sampling position, only take solid-phase extraction membrane to laboratory to carry out analyzing, not only simple to operate, and convenient transportation, effectively save experimental cost and experimental period.2, the present invention is owing to arranging the filter element of more than one-level, and the aperture arranging filter screen diminishes from top to bottom step by step successively, not only effectively can filter out the particle in water sample, and can collect particle simultaneously, facilitate laboratory to carry out collection analysis to particle.3, the present invention is by the filter element more than solid-phase extraction membrane top series connection one-level, not only effectively filter out in water sample to impurity, be convenient to obtain experimental data accurately, and available protecting solid-phase extraction membrane.4, the present invention is owing to specifically arranging the contour structures of connected mode between all parts and all parts, makes installation and removal all very convenient.5, the present invention is owing to arranging the Material Processing of all parts all according to U.S. EPA standard method requirement, makes it possible to be applicable to corrosive atmosphere, effectively extends service life of the present invention.Structure of the present invention is simple, be easy to carry, and can be widely used in the pretreatment in water sample early stage.
Accompanying drawing explanation
Fig. 1 is 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, detailed description is carried out to the present invention.But should be appreciated that being provided only of accompanying drawing understands the present invention better, they not should be understood to limitation of the present invention.In describing the invention, it is to be appreciated that term " first ", " second " etc. are only used for the object described, and instruction or hint relative importance can not be interpreted as.
As shown in Figure 1 and Figure 2, solid-phase extraction device of the present invention comprises the SPE unit 4 of sampling pump 1, Pressure gauge 2, flow meters 3 and a vertical setting; Sampling pump 1, Pressure gauge 2 and flowmeter 3 are sequentially connected in series by pipeline; SPE unit 4 comprises external adapter 42, a connector 43 and two filtering tanks on external adapter 41; The top of lower external adapter 41 is fixedly connected with the bottom of the first filtering tank 44, the top side detachable of the first filtering tank 44 connects the bottom of connector 43, the top side detachable of connector 43 connects the bottom of the second filtering tank 45, and the top of the second filtering tank 45 is fixedly connected with the bottom of external adapter 42; Run through bottom lower external adapter 41 and arrange a mozzle 5 for being communicated with flowmeter 3, upper external adapter 42 top is also run through and is arranged one for importing the mozzle 5 of water sample; First filtering tank 44, second filtering tank 45 and connector 43 internal run-through, connector 43 inwall is arranged a circle annular spacing groove 431, stopper slot 431 sets gradually from top to bottom non-return compressing tablet 432, solid-phase extraction membrane 433 and a supporting screening plate 434, wherein, non-return compressing tablet 432 and supporting screening plate 434 all arrange some through holes.
In a preferred embodiment, can also arrange the filter element 6 of more than one-level between the second filtering tank 45 and upper external adapter 42, be sequentially connected in series between every one-level filter element 6, every one-level filter element 6 includes a connector and a filtering tank; Connector in filter element 6 and filtering tank are all identical with first, second filtering tank structure with the connector 43 in above-mentioned solid phase extraction cells 4 respectively, for convenience of description, connector in filter element 6 is defined as the second connector 61, the filtering tank in filter element 6 is defined as the 3rd filtering tank 62.Wherein, the 3rd filtering tank 62 of first order filter element 6 is fixedly connected with the bottom of external adapter 42, and the second connector 61 of afterbody filter element 6 removably connects the top of the second filtering tank 45; Each second connector 61 all arranges a circle annular spacing groove, each annular spacing groove sets gradually a non-return compressing tablet, a filter screen and a supporting screening plate from top to bottom, the aperture of each filter screen diminishes from top to bottom step by step successively, to realize the object of the classified filtering of filter element.
In a preferred embodiment, lower external adapter 41 and upper external adapter 42 all can adopt lid slab structure.
In a preferred embodiment, for the ease of installation and removal, the outer surface of lower external adapter 41, upper external adapter 42 and connector 43 all can adopt hexagonal structure; Be fixedly connected with and removably connect all can adopt respectively and be threaded.
In a preferred embodiment, in order to increase the service life, be suitable for corrosive atmosphere, lower external adapter 41, upper external adapter 42, each filtering tank, connector 43, supporting screening plate 434 and non-return compressing tablet 432 all can adopt 316 stainless steels or PTFE processing and fabricating according to U.S. EPA standard.
Solid-phase extraction device using method of the present invention, it comprises the following steps:
(1) number containing particle according to on-the-spot water source determines to need the progression of cascade filtration unit 6, and is sequentially connected in series all parts;
(2) mozzle 5 that upper external adapter 42 connects is sunk to water source, and open sampling pump 1; First, the filter screen that water sample is arranged from top to bottom successively on every one-level filter element 6, classified filtering falls in water sample to make while particle the different particle of particle diameter to concentrate on the filter screen of different pore size; Then, water sample is through solid-phase extraction membrane 433, and the trace organic substance in water sample is carried out enrichment by solid-phase extraction membrane 433; Finally, water sample is discharged after flowing through flowmeter 3, Pressure gauge 2 and sampling pump 1 successively, aqueous sample stream through flowmeter 3 and Pressure gauge 2 time, flowmeter 3 and Pressure gauge 2 are monitored respectively and are recorded flow and pressure, 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 large discharge multiple repairing weld, after the filter screen that can more renew respectively and solid-phase extraction membrane 433, circulation said process.
Above-described embodiment is only for illustration of the present invention; wherein the structure of each parts, connected mode and manufacture craft etc. all can change to some extent; every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (6)
1. a solid-phase extraction device, is characterized in that: it comprises the SPE unit of a sampling pump, a Pressure gauge, flow meters and a vertical setting; Described sampling pump, Pressure gauge and flowmeter are sequentially connected in series by pipeline; Described SPE unit comprises external adapter, a connector and two filtering tanks on external adapter; The top of described lower external adapter is fixedly connected with the bottom of 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, and the top of the second filtering tank is fixedly connected with the bottom of described external adapter; Described lower external adapter base runs through and arranges a mozzle for being communicated with described flowmeter, and described external adapter top also runs through and arranges one for importing the described mozzle of water sample; Described first filtering tank, the second filtering tank and connector internal run-through, described connector inwall is arranged the stopper slot of a ring shape, described stopper slot sets gradually from top to bottom a non-return compressing tablet, a solid-phase extraction membrane and a supporting screening plate, wherein, described supporting screening plate and non-return compressing tablet all arrange some through holes.
2. a kind of solid-phase extraction device as claimed in claim 1, it is characterized in that: the filter element that more than one-level is also set between described second filtering tank and described external adapter, be sequentially connected in series between filter element described in every one-level, filter element described in every one-level includes a connector and a filtering tank; The filtering tank of filter element described in the first order is fixedly connected with the bottom of described external adapter, and the connector of filter element described in afterbody removably connects the top of described second filtering tank; The connector of filter element described in each is all arranged a circle annular spacing groove, annular spacing groove described in each sets gradually a non-return compressing tablet, a filter screen and a supporting screening plate from top to bottom, and described in each, the aperture of filter screen diminishes from top to bottom step by step successively.
3. a kind of solid-phase extraction device as claimed in claim 1, is characterized in that: described lower external adapter and upper external adapter all adopt lid slab structure.
4. a kind of solid-phase extraction device as claimed in claim 2, is characterized in that: described lower external adapter and upper external adapter all adopt lid slab structure.
5. a kind of solid-phase extraction device as claimed in claim 1 or 2 or 3 or 4, is characterized in that: the outer surface of described lower external adapter, upper external adapter and connector all adopts hexagonal structure.
6. a kind of solid-phase extraction device as claimed in claim 1 or 2 or 3 or 4, is characterized in that: described external adapter, upper external adapter, filtering tank, connector, supporting screening plate and non-return compressing tablet all adopt 316 stainless steels or PTFE processing and fabricating according to U.S. EPA standard.
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 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510163340.0A CN104771935B (en) | 2015-04-08 | 2015-04-08 | A kind of solid-phase extraction device |
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| CN104771935A true CN104771935A (en) | 2015-07-15 |
| CN104771935B CN104771935B (en) | 2016-08-17 |
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| CN201510163340.0A Active CN104771935B (en) | 2015-04-08 | 2015-04-08 | A kind of solid-phase extraction device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226144A (en) * | 2016-07-15 | 2016-12-14 | 浙江省海洋水产研究所 | A kind of water sample scene pre-treatment and Organic substance enriching apparatus |
| CN115253382A (en) * | 2022-08-22 | 2022-11-01 | 湖南德米特仪器有限公司 | Pressure-variable pore structure for extraction column and extraction column |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226144A (en) * | 2016-07-15 | 2016-12-14 | 浙江省海洋水产研究所 | A kind of water sample scene pre-treatment and Organic substance enriching apparatus |
| 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 |
| CN115253382A (en) * | 2022-08-22 | 2022-11-01 | 湖南德米特仪器有限公司 | Pressure-variable pore structure for extraction column and extraction column |
| 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 |
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| CN104771935B (en) | 2016-08-17 |
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