CN203663496U - Quick and convenient solid-phase extraction device using functional non-woven fabric membrane - Google Patents
Quick and convenient solid-phase extraction device using functional non-woven fabric membrane Download PDFInfo
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- CN203663496U CN203663496U CN201220749304.4U CN201220749304U CN203663496U CN 203663496 U CN203663496 U CN 203663496U CN 201220749304 U CN201220749304 U CN 201220749304U CN 203663496 U CN203663496 U CN 203663496U
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Abstract
The utility model relates to a quick and convenient solid-phase extraction device using a functional non-woven fabric membrane and provides a solid-phase extraction device which is quick, convenient, suitable for outdoor operations and applicable to disc-type non-woven fabric solid-phase extraction membranes. According to the device, no complex equipment, such as a driving device, a vacuum pump and the like, is required, processes of activation, leaching, sample loading, elution and the like can be finished in a positive pressure sample feeding manner, and an on-site enrichment and extraction processes of samples can be realized. The device comprises membrane solid-phase extractors 1, three-way pipes 2 provided with switching throttle valves, waste liquid collection bottles 3, eluent collection bottles 4, a supporting plate 5, supports 6, a base 7 and a medical injector 8.
Description
Technical field
The utility model relates to a kind of fast and convenient solid-phase extraction device of application function nonwoven diaphragm.
Background technology
Environmental monitoring and analysis object is more and more trace and even contaminant trace species, although instrument analytical method can reach even ultra trace level of trace at present, but for complex sample, due to the existence of matrix effect and interfering material, Direct Analysis is still very difficult.The pre-treatments such as separation, the enrichment of therefore, carrying out before sample analysis concentrates are extremely important for the acquisition of final accurate result.The solid phase extraction techniques that 20 century 70 later stages grew up is high for the enrichment factor of sample, rate of extraction is fast, quantity of solvent is few, and easy and Modern Analytical Instrument coupling, is now widely used sample-pretreating method.In the time using solid-phase extraction column to extract with enrichment to a large amount of samples, due to rod structure and the filler of extraction column, it is lower that sample is crossed column flow rate, and analytic sample need use multiple posts to complete sometimes, is difficult to reach the object of fast separating concentration.And solid phase extraction filler is prepared into disc membrane chip, sectional area is large, and sample flow is high, can improve analysis efficiency, is particularly suitable for the analyzing and testing of a large amount of environmental water samples.
The solid-phase extraction device using is at present mainly manual and automatic two kinds of forms, all adopts solvent filter form, and needs condition of negative pressure suction water sample, and extraction equipment need be equipped with the instruments such as vavuum pump.But often, in the field monitoring analytic process of environment water, complicated solid-phase extraction device and equipment are not easy to carry, and operation is inconvenient, cannot meet the needs of fast monitored analytical work.
Macromolecular fibre based nonwoven material is a kind of conventional isolated by filtration material, there is specific functional groups and there is good absorption property as chain alkyl, ester group, carboxyl and amino fibrous nonwoven materials, and adsorb faster resolution speed because fibrous material surface atresia has, can be used as a kind of novel SPE material.Use fiber base nonwoven cloth material as disc type SPE diaphragm, not only have compared with high absorption property, also there is mass transfer velocity fast, the feature that applied sample amount is large.But nonwoven cloth material, by fiber hot pressing or melt-blown moulding, does not have the solid absorption such as silica gel, the active carbon particle in traditional SPE diaphragm, easily Texturized in the more soft use of material, is not suitable for applying existing filtering type solid-phase extraction device.
Utility model content
In order to solve the problem of above-mentioned solid phase extraction equipment existence, and meet the requirement of environment water field monitoring, the utility model provides a kind of quick, convenient, applicable field operation, and the solid-phase extraction device of applicable disc type nonwoven SPE diaphragm use.This device, without complicated equipment, as drive unit, vavuum pump etc., adopts malleation input mode can complete the processes such as activation, drip washing, loading, wash-out, can realize the On-site sampling concentration extraction process of sample.
The utility model provides the three-way pipe 2, waste collection bottle 3, eluent receiving flask 4, supporting plate 5, support 6, base 7, the injector for medical purpose 8 that comprise diaphragm solid extractor 1, band conversion section door.The diaphragm solid extractor 1 that the utility model provides is made up of funnel shaped upper and lower two parts, extractor top 1a and extractor bottom 1b rely on screw thread to be fixed together, nonwoven spe membrane is positioned between extractor top 1a and extractor bottom 1b, and the permeable sieve plate support being had by 1b inside, extractor bottom, extractor top 1a internal edge has round rubber circle 1a-1, in the time that extractor top 1a and extractor bottom 1b are fixed together, rubber ring 1a-1 compresses spe membrane, prevents fluid seepage.Injector for medical purpose 8 is for placing solvent and sample the injection to solid extractor 1.Syringe 8 is connected with funnel shaped upper and lower diaphragm solid extractor 1 top 1a dimerous for sample introduction.Solid extractor bottom 1b is connected with three-way pipe 2 tops of band conversion section door.In the middle of supporting plate 5, has aperture, solid extractor 1 is positioned in supporting plate 5 apertures, and supporting plate 5 and support 6 and base 7 are fixed together as extractor rack.Waste collection bottle 3 is positioned on base 7, for collecting the waste liquid such as activation solvent, leacheate of extraction process.Eluent receiving flask 4 is positioned on base 7 water sample or diaphragm eluent after collection and purification.Support 6 and base 7 and supporting plate 5 compositions are fixed together as extractor rack.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of solid-phase extraction device.
Fig. 2 is the composition diagram of solid extractor 1.
Fig. 3 is the interior view of extractor top 1a.
Fig. 4 is the interior view of extractor bottom 1b.
The specific embodiment
The utility model comprises three-way pipe 2, waste collection bottle 3, eluent receiving flask 4, supporting plate 5, support 6, base 7, the syringe 8 of diaphragm solid extractor 1, band conversion section door.Diaphragm solid extractor 1 is made up of funnel shaped upper and lower two parts, extractor top 1a and extractor bottom 1b rely on screw thread to be fixed together, nonwoven spe membrane is positioned between extractor top 1a and extractor bottom 1b, and by the inner permeable sieve plate support of extractor bottom 1b, extractor top 1a internal edge has round rubber circle 1a-1, in the time that extractor top 1a and extractor bottom 1b are fixed together, rubber ring 1a-1 compresses spe membrane, prevents fluid seepage.Injector for medical purpose 8 is for placing solvent and sample the injection to solid extractor 1.Syringe 8 is connected with funnel shaped upper and lower diaphragm solid extractor 1 top 1a dimerous for sample introduction.Solid extractor bottom 1b is connected with three-way pipe 2 tops of band conversion section door.In the middle of supporting plate 5, has aperture, solid extractor 1 is positioned in supporting plate 5 apertures, and supporting plate 5 and support 6 and base 7 are fixed together as extractor rack.Waste collection bottle 3 is positioned on base 7, for collecting the waste liquid such as activation solvent, leacheate of extraction process.Eluent receiving flask 4 is positioned on base 7 water sample or diaphragm eluent after collection and purification.Support 6 and base 7 and supporting plate 5 compositions are fixed together as extractor rack.
In the time that environmental water sample is carried out to extracting and enriching, solid extractor 1 inside fills nonwoven SPE diaphragm, solid extractor 1 is positioned in supporting plate 5, and then extractor 1 bottom connects the three-way pipe 2 of band conversion section door, and waste collection bottle 3 and eluent receiving flask 4 are positioned on base 7.Use injector for medical purpose 8 that certain volume is activated to solvent and slowly inject extractor 1 from the sample introduction aperture on solid extractor 1 top, make solvent streams make it activation through inner nonwoven SPE diaphragm.The section door of adjusting on three-way pipe 2 makes to activate solvent inflow waste collection bottle 3.Then, certain volume leacheate is slowly injected to extractor 1 from the sample introduction aperture on solid extractor 1 top, drip washing nonwoven SPE diaphragm with injector for medical purpose 8.Leacheate enters waste collection bottle 3.Loading process, aspirates after extracting water sample with injector for medical purpose 8, injects extractor 1 from the sample introduction aperture on solid extractor 1 top, makes aqueous sample stream complete extracting and enriching process through inner nonwoven SPE diaphragm.The water sample of diaphragm of flowing through is thrown in waste collection bottle 3.Elution process, after eluting solvent being aspirated with injector for medical purpose 8, inject extractor 1, enriched fractions in wash-out nonwoven diaphragm, the section door direction of crossover tee 2 is thrown in eluent receiving flask 4 eluent, complete extracting and enriching process, prepare that band in eluent is surveyed to material and analyze mensuration.
The above be the utility model preferred embodiment, can not limit interest field of the present utility model with this.The change of doing according to the utility model claim and variation, still belong to the scope that the utility model is contained.
Claims (4)
1. the fast and convenient solid-phase extraction device of application function nonwoven diaphragm comprises: three-way pipe (2), waste collection bottle (3), eluent receiving flask (4), supporting plate (5), support (6), base (7), the syringe (8) of diaphragm solid extractor (1), band conversion section door;
Funnel shaped upper and lower diaphragm solid extractor dimerous (1), syringe (8) is connected with solid extractor (1) top (1a) for sample introduction, the three-way pipe (2) of band conversion section door is connected with solid extractor bottom (1b), solid extractor (1) is positioned in supporting plate (5), supporting plate (5) is fixed together as extractor rack with support (6) and base (7), and waste collection bottle (3) and eluent receiving flask (4) are positioned over the upper sample flowing out from three-way pipe of collecting of base (7).
2. device according to claim 1, is characterised in that diaphragm solid extractor (1) is made up of funnel shaped upper and lower two parts, and extractor top (1a) relies on screw thread to be fixed together with extractor bottom (1b).
3. device according to claim 1, is characterized in that nonwoven spe membrane is positioned between extractor top (1a) and extractor bottom (1b), and by extractor bottom (1b) inner permeable sieve plate support.
4. device according to claim 1, it is characterized in that extractor top (1a) internal edge has round rubber circle (1a-1), in the time that extractor top (1a) and extractor bottom (1b) is fixed together, rubber ring (1a-1) compresses spe membrane, prevents fluid seepage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220749304.4U CN203663496U (en) | 2012-12-27 | 2012-12-27 | Quick and convenient solid-phase extraction device using functional non-woven fabric membrane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220749304.4U CN203663496U (en) | 2012-12-27 | 2012-12-27 | Quick and convenient solid-phase extraction device using functional non-woven fabric membrane |
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| Publication Number | Publication Date |
|---|---|
| CN203663496U true CN203663496U (en) | 2014-06-25 |
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| CN201220749304.4U Expired - Fee Related CN203663496U (en) | 2012-12-27 | 2012-12-27 | Quick and convenient solid-phase extraction device using functional non-woven fabric membrane |
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Cited By (3)
| 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 |
| CN110873661A (en) * | 2019-12-26 | 2020-03-10 | 中国原子能科学研究院 | Separation and purification device |
| 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 |
-
2012
- 2012-12-27 CN CN201220749304.4U patent/CN203663496U/en not_active Expired - Fee Related
Cited By (4)
| 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 |
| CN110873661A (en) * | 2019-12-26 | 2020-03-10 | 中国原子能科学研究院 | Separation and purification device |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20141227 |
|
| EXPY | Termination of patent right or utility model |