CN202961965U - Solid-phase extraction device applied to ion separation in water samples - Google Patents
Solid-phase extraction device applied to ion separation in water samples Download PDFInfo
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- CN202961965U CN202961965U CN 201220575679 CN201220575679U CN202961965U CN 202961965 U CN202961965 U CN 202961965U CN 201220575679 CN201220575679 CN 201220575679 CN 201220575679 U CN201220575679 U CN 201220575679U CN 202961965 U CN202961965 U CN 202961965U
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Abstract
The utility model provides a solid-phase extraction device applied to ion separation in water samples. The extraction device comprises a sample injection pipe, an elution pipe, a regenerated liquid pipe, a first switching module, a solid-phase extraction column pipe and a second switching module, wherein the sample injection pipe is used for inputting environment water samples into the solid-phase extraction column pipe; the elution pipe is used for inputting elution liquids into the solid-phase extraction column pipe; the regenerated liquid pipe is used for inputting regenerated liquid into the solid-phase extraction column pipe; the first switching module is used for enabling an inlet of the solid-phase extraction column pipe to be selectively communicated with the sample injection pipe, the elution pipe and the regenerated liquid pipe; the solid-phase extraction column pipe is internally filled with absorption fillers; and the second switching module is used for enabling the outlet of the solid-phase extraction column pipe to be selectively communicated with a measurement pipe and a waste discharge pipe. The solid-phase extraction device applied to the ion separation in water samples provided by the utility model has the advantages of portability, simplicity and convenience in operation, easiness in realizing automation and the like.
Description
Technical field
The present invention relates to extraction column, particularly be applied in the solid-phase extraction device of separation of heavy metal ions in environmental water sample.
Background technology
The characteristics such as environmental water sample often has the matrix composition complexity, and pollutant levels are low, therefore, the sample-pretreating method of setting up environmental water sample is extremely important.Solid phase extraction techniques is a kind of sample-pretreating method commonly used, commercial solid-phase extraction device, as loaded down with trivial details in operating process such as the sample introduction of solid-phase extraction column and solid-phase extracting disk, wash-outs, and the automation solid-phase extracting instrument has the characteristics such as complex structure, cost costliness because of additional accessories such as outfit vavuum pump water conservancy diversion.Therefore, a kind of on-the-spot Extraction and enrichment analytical equipment for environmental water sample of development has important practical value.
At present, can be used for the on-the-spot pretreating device of environmental water sample and mainly be divided into two classes:
1) small-sized solid-phase extraction column
Utilize the step of solid-phase extraction column processing environment water sample as follows: A) post activation; B) sample adds; C) post washing; D) analyte wash-out.Small-sized solid-phase extraction column often have operating process loaded down with trivial details, be difficult to realize the characteristics such as water sample with bulk mass enrichment.In addition, the coupling of the more difficult realization of solid-phase extraction column and onthe technology of site test, thus be difficult to realize that the on-line analysis of environmental water sample detects.
2) portable solid-phase extractor
Such device is generally by peristaltic pump, solid-phase extraction column or extracting disk and composition of the control system, although portable solid-phase extractor can be realized the enrichment of bulk sample, but often need to realize by the control program of complexity in its operating process, and running cost is higher, in addition, portable solid-phase extractor easily causes sample residual, the accuracy of impact analysis result and repeatability because stream is complicated.
Summary of the invention
In order to solve the deficiency in above-mentioned prior art scheme, the invention provides a kind of portable, easy and simple to handle, easily be automated be applied to the solid-phase extraction device that the water sample intermediate ion separates.
The objective of the invention is to be achieved through the following technical solutions:
Be applied to the solid-phase extraction device that the water sample intermediate ion separates, described extraction equipment comprises:
Sample feeding pipe, described sample feeding pipe are used for water sample is inputed in the SPE column jecket;
Wash-out pipe, described wash-out pipe are used for eluent is inputed in described SPE column jecket;
Regenerated liquid pipe, described regenerated liquid pipe are used for regenerated liquid is inputed in described SPE column jecket;
The first handover module, described the first handover module are used for the import of described SPE column jecket optionally is communicated with described sample feeding pipe, wash-out pipe, regenerated liquid pipe;
The SPE column jecket, described SPE column jecket is in-built adsorption stuffing;
The second handover module, described the second handover module are used for making the egress selection ground of described SPE column jecket to be communicated with measuring tube, waste pipe.
According to above-mentioned solid-phase extraction device, alternatively, described water sample is environmental water sample or clears up water sample.
According to above-mentioned solid-phase extraction device, preferably, described the first handover module and or the second handover module employing triple valve.
According to above-mentioned solid-phase extraction device, preferably, described SPE column jecket is at least two, each other series connection.
According to above-mentioned solid-phase extraction device, preferably, different adsorption stuffings is housed in each solid-phase extraction column.
Compared with prior art, the beneficial effect that has of the present invention is:
1, solid-phase extraction column filler used is commercial chelating resin or C18 resin material, selects according to the analytic target difference, and this material is simple and easy to, and is with low cost, reusable;
2, this device collects sample absorption, online wash-out and is detected on one, and is easy and simple to handle, measures fast.Be connected by polyfluortetraethylene pipe due between on-line solid phase extraction post and detector, eluent enters solid-phase extraction column and flows out from the right-hand member polyfluortetraethylene pipe from the threeway adapter and enters detector and detect online;
The quick separation that 3, can realize the large volume environmental sample detects;
The Selective Separation that 4, can realize different valence state element or different test substances detects.
Description of drawings
With reference to accompanying drawing, disclosure of the present invention will be easier to understand.Those skilled in the art easily are understood that: these accompanying drawings only are used for illustrating technical scheme of the present invention, and are not to be intended to protection scope of the present invention is construed as limiting.In figure:
Fig. 1 is the structure diagram according to the on-line solid phase extraction post of the embodiment of the present invention 1;
Fig. 2 is the structure diagram according to the online series connection solid-phase extraction column of the embodiment of the present invention 2.
The specific embodiment
Fig. 1,2 and following declarative description optional embodiment of the present invention how to implement and to reproduce the present invention with instruction those skilled in the art.In order to instruct technical solution of the present invention, simplified or omitted some conventional aspects.Those skilled in the art should understand that the modification that is derived from these embodiments or replace will be within the scope of the invention.Those skilled in the art should understand that following characteristics can make up to form a plurality of modification of the present invention in every way.Thus, the present invention is not limited to following optional embodiment, and is only limited by claim and their equivalent.
Embodiment 1:
Fig. 1 has schematically provided the structure diagram of the solid-phase extraction device that is applied in the separation of water sample intermediate ion of the embodiment of the present invention, and as shown in Figure 1, described extraction equipment comprises:
Sample feeding pipe 1, described sample feeding pipe 1 is used for water sample is inputed in the SPE column jecket;
Wash-out pipe 2, described wash-out pipe 2 is used for eluent is inputed in described SPE column jecket;
Regenerated liquid pipe 3, described regenerated liquid pipe 3 is used for regenerated liquid is inputed in described SPE column jecket 5;
The first handover module 4, described the first handover module 4 is used for the import of described SPE column jecket 5 optionally is communicated with described sample feeding pipe 1, wash-out pipe 2, regenerated liquid pipe 3; Described the first handover module 4 can adopt three-way magnetic valve;
SPE column jecket 5 is equipped with adsorption stuffing in described SPE column jecket 5, as polymeric adsorbent;
The second handover module 7, described the second handover module 7 are used for making the egress selection ground of described SPE column jecket 5 to be communicated with measuring tube 9, waste pipe 8.Described the second handover module 7 can adopt three-way magnetic valve.
During concrete operations, at first measure the environmental water sample of 100mL or clear up water sample by sample introduction liquid pipe 1 and be injected in solid-phase extraction column, sample introduction speed is generally 1～10mL/min.Magnetic valve switches to the waste liquid pipeline, the sample flow fluid is derived, then measure the 10mL eluent by eluent pipe 2 and carry out wash-out, and elution speed is generally 1mL/min.Magnetic valve switches to and directly enters detector in the eluent pipeline and detect.Measure 10mL NH4AC buffer solution flushing post by regenerated liquid pipe 3 at last and regenerate, elution speed is generally 10mL/min.Thereby complete loading, wash-out, regeneration step.
Embodiment 2
According to the application of extraction equipment in environmental water sample of the embodiment of the present invention 1, specifically for realizing trivalent chromium and chromic while compartment analysis.
Fig. 2 has schematically provided the structure diagram of the solid-phase extraction device that is applied in the separation of water sample intermediate ion of the embodiment of the present invention, as shown in Figure 2, the solid-phase extraction column pipe has two, between the series connection, fill respectively anion exchange resin and cationic ion-exchange resin in two column jeckets, realize the series connection of two solid-phase extraction columns.After sample joins in solid-phase extraction column, trivalent chromium and Cr VI carry out respectively wash-out in solid-phase extraction column, then carry out the gradation wash-out by eluant, eluent.The pipeline internal diameter is selected the polyfluortetraethylene pipe of 1/8 cun.
Embodiment 3
The application of extraction equipment in clearing up water sample according to the embodiment of the present invention 1, be used for volume less than the analysis of 5mL sample, at this moment, the SPE column jecket is replaced by the specification of 1mL, sample introduction liquid pipe, eluent pipe and regenerated liquid pipe can be selected micro syringe, and the pipeline internal diameter is selected the polyfluortetraethylene pipe of 1/16 cun.
Claims (5)
1. be applied to the solid-phase extraction device that the water sample intermediate ion separates, it is characterized in that: described extraction equipment comprises:
Sample feeding pipe, described sample feeding pipe are used for water sample is inputed in the SPE column jecket;
Wash-out pipe, described wash-out pipe are used for eluent is inputed in described SPE column jecket;
Regenerated liquid pipe, described regenerated liquid pipe are used for regenerated liquid is inputed in described SPE column jecket;
The first handover module, described the first handover module are used for the import of described SPE column jecket optionally is communicated with described sample feeding pipe, wash-out pipe, regenerated liquid pipe;
The SPE column jecket, described SPE column jecket is in-built adsorption stuffing;
The second handover module, described the second handover module are used for making the egress selection ground of described SPE column jecket to be communicated with measuring tube, waste pipe.
2. solid-phase extraction device according to claim 1, it is characterized in that: described water sample is environmental water sample or clears up water sample.
3. solid-phase extraction device according to claim 1, is characterized in that: described the first handover module and or the second handover module employing triple valve.
4. solid-phase extraction device according to claim 1, it is characterized in that: described SPE column jecket is at least two, each other series connection.
5. solid-phase extraction device according to claim 4, is characterized in that: different adsorption stuffings is housed in each solid-phase extraction column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220575679 CN202961965U (en) | 2012-11-05 | 2012-11-05 | Solid-phase extraction device applied to ion separation in water samples |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220575679 CN202961965U (en) | 2012-11-05 | 2012-11-05 | Solid-phase extraction device applied to ion separation in water samples |
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| CN202961965U true CN202961965U (en) | 2013-06-05 |
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| CN 201220575679 Expired - Fee Related CN202961965U (en) | 2012-11-05 | 2012-11-05 | Solid-phase extraction device applied to ion separation in water samples |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353412A (en) * | 2013-07-19 | 2013-10-16 | 聚光科技(杭州)股份有限公司 | Water sample pretreatment device and method |
| CN105527147A (en) * | 2015-11-23 | 2016-04-27 | 浙江省海洋水产研究所 | Extraction apparatus for heavy metals in seawater sample |
| CN105651575A (en) * | 2016-01-18 | 2016-06-08 | 浙江大学 | Desorption device for saxitoxin in macroporous resin and method of desorption device |
| CN112857933A (en) * | 2020-09-08 | 2021-05-28 | 山东大学 | Seawater heavy metal element multi-unit cooperative online enrichment and self-cleaning method |
-
2012
- 2012-11-05 CN CN 201220575679 patent/CN202961965U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103353412A (en) * | 2013-07-19 | 2013-10-16 | 聚光科技(杭州)股份有限公司 | Water sample pretreatment device and method |
| CN103353412B (en) * | 2013-07-19 | 2016-08-31 | 聚光科技(杭州)股份有限公司 | Water sample pretreatment device and method |
| CN105527147A (en) * | 2015-11-23 | 2016-04-27 | 浙江省海洋水产研究所 | Extraction apparatus for heavy metals in seawater sample |
| CN105527147B (en) * | 2015-11-23 | 2018-05-22 | 浙江省海洋水产研究所 | A kind of seawater sample Extraction of Heavy Metals device |
| CN105651575A (en) * | 2016-01-18 | 2016-06-08 | 浙江大学 | Desorption device for saxitoxin in macroporous resin and method of desorption device |
| CN112857933A (en) * | 2020-09-08 | 2021-05-28 | 山东大学 | Seawater heavy metal element multi-unit cooperative online enrichment and self-cleaning method |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20171105 |