CN204671937U - Solid-phase extraction device - Google Patents
Solid-phase extraction device Download PDFInfo
- Publication number
- CN204671937U CN204671937U CN201520207432.XU CN201520207432U CN204671937U CN 204671937 U CN204671937 U CN 204671937U CN 201520207432 U CN201520207432 U CN 201520207432U CN 204671937 U CN204671937 U CN 204671937U
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- China
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- external adapter
- filtering tank
- connector
- solid
- phase extraction
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Abstract
The utility model relates to a kind of solid-phase extraction device, and it comprises the SPE unit of the sampling pump of serial communication successively, Pressure gauge, flowmeter and vertical setting; SPE unit comprises external adapter, a connector and two filtering tanks on external adapter; The top of lower external adapter is fixedly connected with the bottom of 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 top of the second filtering tank is fixedly connected with the bottom of external adapter; Descend external adapter base and upper external adapter top to run through respectively and a mozzle is set; First filtering tank, the second filtering tank and connector internal run-through, connector inwall is arranged the stopper slot of a ring shape, stopper slot sets gradually from top to bottom a non-return compressing tablet, a solid-phase extraction membrane and a supporting screening plate.The utility model is simple to operate, convenient transportation not only, and in sampling position, water sample can be carried out pretreatment.
Description
Technical field
The utility model 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 purpose of this utility model 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 utility model 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 utility model is owing to taking above technical scheme, it has the following advantages: 1, the utility model 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 utility model 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 utility model 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 utility model 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 utility model 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 utility model.The utility model structure 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 utility model;
Fig. 2 is the detonation configuration schematic diagram of Fig. 1;
Fig. 3 is the structural representation that the utility model is connected with filter element.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description is carried out to the utility model.But should be appreciated that being provided only of accompanying drawing understands the utility model better, they not should be appreciated that paired restriction of the present utility model.In description of the present utility model, 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 utility model 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.
The utility model solid-phase extraction device using method, 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 utility model; 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 solutions of the utility model and improvement, all should not get rid of outside protection domain of the present utility model.
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. 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. 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. 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. 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. 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 |
|---|---|---|---|
| CN201520207432.XU CN204671937U (en) | 2015-04-08 | 2015-04-08 | Solid-phase extraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520207432.XU CN204671937U (en) | 2015-04-08 | 2015-04-08 | Solid-phase extraction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204671937U true CN204671937U (en) | 2015-09-30 |
Family
ID=54171663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520207432.XU Withdrawn - After Issue CN204671937U (en) | 2015-04-08 | 2015-04-08 | Solid-phase extraction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204671937U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104771935A (en) * | 2015-04-08 | 2015-07-15 | 北京普立泰科仪器有限公司 | Solid-phase extraction device |
-
2015
- 2015-04-08 CN CN201520207432.XU patent/CN204671937U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104771935A (en) * | 2015-04-08 | 2015-07-15 | 北京普立泰科仪器有限公司 | Solid-phase extraction device |
| CN104771935B (en) * | 2015-04-08 | 2016-08-17 | 北京普立泰科仪器有限公司 | A kind of solid-phase extraction device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150930 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |