CN201993350U - Solid phase extraction device for enriching trace organic matters from glaciers on site - Google Patents
Solid phase extraction device for enriching trace organic matters from glaciers on site Download PDFInfo
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- CN201993350U CN201993350U CN 201120011597 CN201120011597U CN201993350U CN 201993350 U CN201993350 U CN 201993350U CN 201120011597 CN201120011597 CN 201120011597 CN 201120011597 U CN201120011597 U CN 201120011597U CN 201993350 U CN201993350 U CN 201993350U
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Abstract
The utility model relates to a solid phase extraction device for enriching trace organic matters from glaciers on site. The solid phase extraction device is characterized in that a solid phase extraction column is made of a glass tube which is filled with macroporous absorption resin and provided with a polytetrafluoroethylene plug cock, wherein the upper part and the lower part of the macroporous absorption resin are fixed by glass wool. The upper end of the glass tube penetrates through a through hole and is connected with one end of a two-way joint with a plug cock; the other end of the two-way joint is connected with a polytetrafluoroethylene tube; the through hole is provided with a rubber plug which can clamp the upper end of the solid phase extraction column; the lower part of the glass tube with the polytetrafluoroethylene plug cock passes through the outlet of a box body; and the solid phase extraction column is vertical to the through hole and the outlet at the bottom. The solid phase extraction device extracts the trace organic matters from glaciers by utilizing the macroporous absorption resin, has the characteristics of large sampling quantity, high absorption efficiency, a broad application range and capability of enriching various trace organic matters; and the solid phase extraction device is especially suitable for enriching trace organic matters from glaciers and particularly suitable to continuous operation on site in the field. The solid phase extraction device has the advantages of being simple in structure, convenient to operate and carry and low in cost, and simplifying the steps of transferring samples.
Description
Technical field
The present invention relates to the solid-phase extraction device of trace organic substance in a kind of on-the-spot enrichment glacier.
Background technology
Studies show that snowfall can be removed the organism of gaseous state and particulate load effectively from air, therefore, the glacier is an organic important carrier in the record atmosphere.Organism in the glacier directly imports with the glacier melt water in the surface water bodies such as river, river, lake, water resource is supplied with in the mankind's drinking water source and farmland caused potential influence.Therefore it is significant for estimating the harm healthy to the human and animal and other ecosystem of this pollutant to study in the glacier organic contents level.But because organic composition is very complicated in the glacier, content is extremely low, need adopt a large amount of samples, therefore selects a kind of suitable extracting method just to seem particularly important.About the extracting method commonly used of organism in the glacier liquid-liquid extraction, Solid-Phase Extraction and solid-phase microextraction are arranged in the document at present.Liquid-liquid extraction method is to analyze organic traditional pre-treating method in the snow ice sample, and it is with organic solvent one or many extraction organism from the ice and snow melt water, concentrates, constant volume, analysis, has the simple advantage of experimental provision.Its shortcoming be need a large amount of use cost an arm and a leg, toxic and volatile in operation and cause the organic solvent of huge waste, and the microcomponent peak of enrichment easily covered by the solvent main peak on chromatogram, influence detects quality.In addition, emulsion also is a problem that is difficult in the liquid-liquid extraction method solve.The solid-phase microextraction method has the few and timesaving advantage of amount of samples, but used extracting head is relatively more expensive, is not possessing broad spectrum activity (selectivity is stronger) aspect the organism enrichment, and its application has certain limitation.Consider these shortcomings of liquid-liquid extraction and solid-phase microextraction, solid phase extraction techniques may be more suitable for the enrichment of Trace Organic Compounds in the snow ice.
Solid-Phase Extraction is the sample pre-treatments technology that grows up early 1970s, and it comes down to the liquid phase chromatography of a simplification.In Solid-Phase Extraction, adsorbent is as stationary phase, and sample solution is as moving phase.When moving phase contacted with stationary phase, object was retained in adsorbent surface, at this moment used a spot of selective solvent wash-out, can obtain the object of enrichment and purifying.Existing solid-phase extraction device has solid phase extraction column and auxiliary to constitute.There is following defective in its technology: (1) complex structure, and price is higher, the running program relative complex; (2) can't realize the enrichment of organic compound in the snow ice sample of large volume glacier by solid phase extraction column, small size neve ice sample product then since the organism of enrichment can't detect very little; (3) because the diameter of solid phase extraction column is less, limited the increase of flow, and stopped up easily when dirtier sample is crossed post relatively, flow has further been reduced, thereby increased the processing time.
Summary of the invention
In order to overcome the defective that prior art exists, the purpose of this utility model aims to provide the solid-phase extraction device of trace organic substance in a kind of on-the-spot enrichment glacier.
The technical scheme that its technical matters that solves the utility model adopts is:
The solid-phase extraction device of trace organic substance in a kind of on-the-spot enrichment glacier comprises that two of casing, solid-phase extraction column and the cock of band teflon are logical.Casing is provided with interlayer, and through hole is arranged on the interlayer, and outlet is arranged at the bottom, and solid-phase extraction column is to be made of the glass tube that macroporous absorbent resin is housed and has a teflon cock, and macroporous absorbent resin is fixed with glass wool up and down.The glass tube upper end is passed through hole and is connected with two ends that lead to of band teflon cock, and the two logical other ends are connected with polyfluortetraethylene pipe, are furnished with the rubber plug that can block the solid-phase extraction column upper end on the through hole; The glass tube bottom of band teflon cock is by the outlet of casing, and solid-phase extraction column is perpendicular to the outlet of through hole and bottom; Be provided with heating wire and bulb at the bottom of casing, heating wire is connected with the supply socket of case both sides respectively by lead with bulb.
The utility model has the advantages that:
1, the utility model adopts macroporous absorbent resin to extract in the glacier organism to have that sample size is big, absorption affinity strong, enrichment multiple height, and the processing time is short, renewable, stain less, easy and simple to handle, can be at the scene 10 samples of enrichment continuously simultaneously.And applied widely, the various micro-content organisms of energy enrichment.And macroporous absorbent resin is stable than bonded silica gel class performance of the adsorbent, and is higher to the organic recovery, lower, the easy popularization of cost.
2, the utility model is equipped with two cover well heaters in the bottom of casing, in case because environment temperature is crossed the low ice and snow sample of thawing that makes and freezed once more, what make glacier melt water smoothness pass through macroporous absorption post, raising macroporous absorbent resin adsorption efficiency, shortening adsorption time.
3, compare with existing solid-phase extraction device, the utility model does not use vacuum pump decompression, the artificial pollution that has therefore reduced energy resource consumption and brought owing to generator for electricity generation.
4, the utility model simple in structure, easy to operate, be easy to carry, with low cost, simplified the sample transfer step.
Description of drawings
Fig. 1 is a synoptic diagram of the present utility model.
Embodiment
As shown in Figure 1, the solid-phase extraction device of trace organic substance in a kind of on-the-spot enrichment glacier comprises two logical 3 of casing 1, solid-phase extraction column 2 and the cock of band teflon.Casing 1 is provided with interlayer, and 10 through holes 4 are arranged at the top, and 10 outlets 6 are arranged at the bottom.Solid-phase extraction column 2 is to be made of the glass tube that macroporous absorbent resin is housed and has a 25mm*30cm of teflon cock.Macroporous absorbent resin is fixed with glass wool up and down.Two logical 3 the end that interlayer through hole 4 and the cock of band teflon are passed in glass tube upper end is connected, and two lead to 3 other ends is connected with polyfluortetraethylene pipe 7, is furnished with the rubber plug 5 that can block solid-phase extraction column 2 upper ends on the through hole 4; The glass tube bottom of band teflon cock is by the outlet 6 of casing.Solid-phase extraction column 2 is perpendicular to the through hole 4 at casing 1 top and the outlet 6 of bottom.Be provided with heating wire 8 and four miniature bulbs 9 at 1 end of casing, heating wire 8 is connected with the supply socket 10 of case both sides respectively by lead with bulb 9.
The container of splendid attire glacier melt water sample is placed the top of casing 1, open two logical 3 the teflon cock that is connected with solid-phase extraction column 2 upper ends, since solid-phase extraction column 2 water inlet position with go out water level and have water-head and form a closed system, therefore melt water will enter owing to the upper end of siphonage from solid-phase extraction column 2, flows through macroporous absorbent resin (potpourri of the potpourri of GDX102 and GDX105 or XAD-2 and XAD-8) and passes through outlet 6 outflows of the glass tube bottom of band teflon cock from casing 1 bottom.Crossed after the solid-phase extraction column Deng an all melt water of sample, with ear washing bulb hydraulic pressure residual in the resin has been gone out, afterwards solid-phase extraction column 2 two ends of having adsorbed quantity of organic have been sealed, wrapped with clean masking foil, cryopreservation is taken back the laboratory.
Claims (1)
1. the solid-phase extraction device of trace organic substance in the on-the-spot enrichment glacier, two logical (3) that comprise casing, solid-phase extraction column (2) and the cock of band teflon, casing (1) is provided with interlayer, through hole (4) is arranged on the interlayer, outlet (6) is arranged at the bottom, solid-phase extraction column (2) is to be made of the glass tube that macroporous absorbent resin is housed and has a teflon cock, and macroporous absorbent resin is fixed with glass wool up and down; The glass tube upper end is passed through hole and is connected with an end of two logical (3) of the cock of band teflon, and the other end of two logical (3) is connected with polyfluortetraethylene pipe (7), is furnished with the rubber plug (5) that can block the solid-phase extraction column upper end on the through hole (4); The glass tube bottom of band teflon cock is by the outlet (6) of casing, and solid-phase extraction column (2) is perpendicular to the outlet (6) of through hole (4) and bottom; Be provided with heating wire (8) and bulb (9) at the bottom of casing, heating wire (8) is connected with the supply socket (10) of case both sides respectively by lead with bulb (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120011597 CN201993350U (en) | 2011-01-11 | 2011-01-11 | Solid phase extraction device for enriching trace organic matters from glaciers on site |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120011597 CN201993350U (en) | 2011-01-11 | 2011-01-11 | Solid phase extraction device for enriching trace organic matters from glaciers on site |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201993350U true CN201993350U (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120011597 Expired - Fee Related CN201993350U (en) | 2011-01-11 | 2011-01-11 | Solid phase extraction device for enriching trace organic matters from glaciers on site |
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| CN (1) | CN201993350U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108572100A (en) * | 2017-03-07 | 2018-09-25 | 中国科学院寒区旱区环境与工程研究所 | A kind of multichannel positive pressure solid-phase micro-extracting device |
| CN110702489A (en) * | 2019-09-29 | 2020-01-17 | 广东省测试分析研究所（中国广州分析测试中心） | Uniform-speed solid-phase extraction method and device suitable for enriching naturally dissolved organic matters |
-
2011
- 2011-01-11 CN CN 201120011597 patent/CN201993350U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108572100A (en) * | 2017-03-07 | 2018-09-25 | 中国科学院寒区旱区环境与工程研究所 | A kind of multichannel positive pressure solid-phase micro-extracting device |
| CN110702489A (en) * | 2019-09-29 | 2020-01-17 | 广东省测试分析研究所（中国广州分析测试中心） | Uniform-speed solid-phase extraction method and device suitable for enriching naturally dissolved organic matters |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20120111 |