CN103007575A - Rapid, simple and convenient solid phase extracting device applying functional non-woven fabric membrane - Google Patents
Rapid, simple and convenient solid phase extracting device applying functional non-woven fabric membrane Download PDFInfo
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- CN103007575A CN103007575A CN2012105934672A CN201210593467A CN103007575A CN 103007575 A CN103007575 A CN 103007575A CN 2012105934672 A CN2012105934672 A CN 2012105934672A CN 201210593467 A CN201210593467 A CN 201210593467A CN 103007575 A CN103007575 A CN 103007575A
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Abstract
The invention relates to a rapid, simple and convenient solid phase extracting device applying a functional non-woven fabric membrane. The invention provides a solid phase extracting device which is rapid and convenient, is applicable to outdoor operation and is applicable to a disc type non-woven fabric solid phase extracting membrane. The device can be used for completing processes of activating, leaching, loading, eluting and the like in a positive-pressure sampling manner without complex equipment such as a driving device and a vacuum pump, so as to realize a field enrichment extraction process of a sample. The solid phase extracting device provided by the invention comprises a membrane solid phase extractor 1, a three-way pipe 2 with a switching valve, a waste liquid collection bottle 3, an eluant collection bottle 4, a supporting board 5, a bracket 6, a base 7 and a medical injector 8.
Description
Technical field
The present invention relates to a kind of fast and convenient solid-phase extraction device of application function nonwoven diaphragm.
Background technology
The environmental monitoring and analysis object more and more is trace and even contaminant trace species, although instrument analytical method can reach trace even ultra trace level at present, yet for complex sample, because the existence of matrix effect and interfering material, Direct Analysis is still very difficult.The pre-treatments such as the separation of therefore, carrying out before the sample analysis, enrichment concentrate 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.When using solid-phase extraction column to extract with enrichment to a large amount of samples, because rod structure and the filler of extraction column, it is lower that sample is crossed column flow rate, and analytic sample need use a plurality of posts to finish sometimes, is difficult to reach the purpose of fast separating concentration.And solid phase extraction filler is prepared into the disc membrane chip, and 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 that uses at present is mainly manually and automatic two kinds of forms, all adopts the 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 inconvenience, can't satisfy the needs of fast monitored analytical work.
Macromolecular fibre based nonwoven material is a kind of isolated by filtration material commonly used, have specific functional groups such as chain alkyl, ester group, carboxyl and amino fibrous nonwoven materials and have preferably absorption property, and adsorb faster resolution speed because fibrous material surface atresia has, can be used as a kind of novel SPE material.The fiber base nonwoven cloth material is used as disc type SPE diaphragm, not only have than high absorption property, it is fast also to have a mass transfer velocity, the characteristics that applied sample amount is large.But nonwoven cloth material is by fiber hot pressing or melt and spray moulding, does not have the solid absorption particles such as silica gel in traditional SPE diaphragm, active carbon, and material is easily Texturized in soft the use, is not suitable for using existing filtering type solid-phase extraction device.
Summary of the invention
The problem that exists in order to solve the above-mentioned solid phase extraction equipment, and satisfy the requirement of environment water field monitoring, the invention provides a kind of quick, convenient, be fit to field operation, and the solid-phase extraction device that uses of suitable disc type nonwoven SPE diaphragm.This device need not complicated equipment, such as drive unit, vavuum pump etc., adopts the malleation input mode can finish the processes such as activation, drip washing, loading, wash-out, can realize the On-site sampling concentration extraction process of sample.
The invention 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.Diaphragm solid extractor 1 provided by the invention is comprised of funnel shaped up and down two parts, extractor top 1a and extractor bottom 1b rely on screw thread to be fixed together, the nonwoven spe membrane is positioned between extractor top 1a and the extractor bottom 1b, and the permeable sieve plate support that is had by 1b inside, extractor bottom, extractor top 1a internal edge has round rubber circle 1a-1, when extractor top 1a and extractor bottom 1b are fixed together, rubber ring 1a-1 compresses spe membrane, prevents fluid seepage.Solid extractor bottom 1b is connected with the three-way pipe 2 of band conversion section door, is used for discharging waste liquid and eluent.Waste collection bottle 3 is for waste liquids such as the activation solvent of collecting extraction process, leacheates.Eluent receiving flask 4 is for water sample or diaphragm eluent after the collection and purification.Have aperture in the middle of the supporting plate 4, solid extractor 1 can be placed therein.Support 6 and base 7 and supporting plate 5 form and are fixed together as the extractor rack.Injector for medical purpose 8 is used for solvent and sample to the injection of solid extractor 1.
Description of drawings
Fig. 1 is the schematic diagram of the solid-phase extraction device of suitable nonwoven SPE diaphragm use.
Fig. 2 is the composition diagram of the solid extractor 1 of suitable nonwoven SPE diaphragm use.Solid extractor 1 is comprised of two parts up and down, and extractor top 1a is similar bottle cap object, and there is universal sample introduction aperture the centre, can make things convenient for injector for medical purpose to connect, and internal edge has groove, and the caulking gum packing ring is positioned in the groove.Extractor bottom 1b inner plane is permeable sieve plate, and the efflux aperture is arranged in the middle of the bottom.Nonwoven SPE diaphragm is positioned on the permeable sieve plate of extractor bottom, and extractor top 1a and bottom 1b have screw thread, both can be fixed together by screw thread, and the rubber ring 1a-1 on extractor top compresses diaphragm, prevents liquid leakage.
Fig. 3 is the interior view of extractor top 1a, and the internal edge of the extractor top 1a of similar bottle cap has groove, a sealing rubber ring 1a-1 can be positioned in the groove.
Fig. 4 is the interior view of extractor bottom 1b, and extractor 1b inside is the water permeable plane sieve plate.
The specific embodiment
The present invention includes 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 comprised of funnel shaped up and down two parts, extractor top 1a and extractor bottom 1b rely on screw thread to be fixed together, the nonwoven spe membrane is positioned between extractor top 1a and the 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, when extractor top 1a and extractor bottom 1b were fixed together, rubber ring 1a-1 compressed spe membrane, prevents fluid seepage.Solid extractor bottom 1b is connected with the three-way pipe 2 of band conversion section door, is used for discharging waste liquid and eluent.Waste collection bottle 3 is for waste liquids such as the activation solvent of collecting extraction process, leacheates.Eluent receiving flask 4 is for water sample or diaphragm eluent after the collection and purification.Have aperture in the middle of the supporting plate 4, solid extractor 1 can be placed therein.Support 6 and base 7 and supporting plate 5 form and are fixed together as the extractor rack.Injector for medical purpose 8 is used for solvent and sample to the injection of solid extractor 1.
When environmental water sample is carried out extracting and enriching, solid extractor 1 inside fills nonwoven SPE diaphragm, solid extractor 1 is positioned in the 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 the base 7.Use injector for medical purpose 8 that certain volume is activated 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 the three-way pipe 2 makes the activation solvent flow into waste collection bottle 3.Then, with injector for medical purpose 8 the certain volume leacheate is slowly injected extractor 1 from the sample introduction aperture on solid extractor 1 top, drip washing nonwoven SPE diaphragm.Leacheate enters waste collection bottle 3.The loading process is aspirated 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 finish the extracting and enriching process through inner nonwoven SPE diaphragm.The water sample of diaphragm of flowing through is thrown in the waste collection bottle 3.Elution process, with injector for medical purpose 8 eluting solvent is aspirated the rear extractor 1 that injects, enriched fractions in the wash-out nonwoven diaphragm, the section door direction of crossover tee 2 is thrown in the eluent receiving flask 4 eluent, finish the extracting and enriching process, prepare that band in the eluent is surveyed material and analyze mensuration.
The above is the preferred embodiment of the present invention, can not limit interest field of the present invention with this.Change and variation according to claim of the present invention is done still belong to the scope that the present invention is contained.
Claims (8)
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.
2. device according to claim 1 is characterized in that diaphragm solid extractor 1 is comprised of funnel shaped up and down two parts, and extractor top 1a and extractor bottom 1b rely on screw thread to be fixed together.
3. device according to claim 1 is characterized in that the nonwoven spe membrane is positioned between extractor top 1a and the extractor bottom 1b, and by the inner permeable sieve plate support of extractor bottom 1b.
4. device according to claim 1 is characterized in that extractor top 1a internal edge has round rubber circle 1a-1, and when extractor top 1a and extractor bottom 1b were fixed together, rubber ring 1a-1 compressed spe membrane, prevents fluid seepage.
5. device according to claim 1 is characterized in that solid extractor bottom 1b is connected with the three-way pipe 2 of band conversion section door, is used for discharging waste liquid and eluent.
6. device according to claim 1 is characterized in that having aperture in the middle of the supporting plate 4, solid extractor 1 can be placed therein.
7. device according to claim 1 is characterized in that support 6 and base 7 and supporting plate 5 form to be fixed together as the extractor rack.
8. device according to claim 1 is characterized in that injector for medical purpose 8 is used for solvent and sample to the injection of solid extractor 1.
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| CN2012105934672A CN103007575A (en) | 2012-12-27 | 2012-12-27 | Rapid, simple and convenient solid phase extracting device applying functional non-woven fabric membrane |
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| CN2012105934672A CN103007575A (en) | 2012-12-27 | 2012-12-27 | Rapid, simple and convenient solid phase extracting device applying functional non-woven fabric membrane |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108333011A (en) * | 2018-02-12 | 2018-07-27 | 云南中烟工业有限责任公司 | A kind of device of achievable sample high throughput processing |
| 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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| CN101590333A (en) * | 2009-06-23 | 2009-12-02 | 东南大学 | Array solid-phase extraction device based on nanofiber absorption |
| CN102369408A (en) * | 2009-03-17 | 2012-03-07 | T.D.E.回收技术有限公司 | A pyrolytic reactor |
| WO2012166291A2 (en) * | 2011-05-04 | 2012-12-06 | Restek Corporation | Protective barrier against contamination from sample preparation and extraction devices |
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2012
- 2012-12-27 CN CN2012105934672A patent/CN103007575A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102369408A (en) * | 2009-03-17 | 2012-03-07 | T.D.E.回收技术有限公司 | A pyrolytic reactor |
| CN101590333A (en) * | 2009-06-23 | 2009-12-02 | 东南大学 | Array solid-phase extraction device based on nanofiber absorption |
| WO2012166291A2 (en) * | 2011-05-04 | 2012-12-06 | Restek Corporation | Protective barrier against contamination from sample preparation and extraction devices |
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| THRMAN,E.M.,MILLS,M.S.: "《solid phase extraction,principles and practice》", 30 December 1998, JOHN WILEY &SONS,INC. * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333011A (en) * | 2018-02-12 | 2018-07-27 | 云南中烟工业有限责任公司 | A kind of device of achievable sample high throughput processing |
| 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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Application publication date: 20130403 |