CN202942682U - Solid-phase extraction column - Google Patents
Solid-phase extraction column Download PDFInfo
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- CN202942682U CN202942682U CN 201220712660 CN201220712660U CN202942682U CN 202942682 U CN202942682 U CN 202942682U CN 201220712660 CN201220712660 CN 201220712660 CN 201220712660 U CN201220712660 U CN 201220712660U CN 202942682 U CN202942682 U CN 202942682U
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Abstract
The utility model provides a solid-phase extraction column, which is used for effectively solving the problems that the size is large, the used stuffing is more, the solution needed for the elution process is more and the extraction operation cost is high in the prior art. The utility model discloses the solid-phase extraction column. The solid-phase extraction column comprises a cavity cylinder, wherein two sieve plates are arranged in the cylinder; and stuffing is provided between the two sieve plates. The solid-phase extraction column has the advantages of effectively reducing the size of the solid-phase extraction column, effectively saving the stuffing, reducing the solution needed during the elution process and greatly reducing the material cost and the extraction operation cost of the solid-phase extraction column. Besides, the solid-phase extraction column can be used for ensuring the solution flow rate, enabling the operation to be simple and enabling the cleaning to be convenient.
Description
Technical field
The utility model relates to a kind of solid particle sampling apparatus, particularly a kind of solid-phase extraction column.
Background technology
SPE (Solid-Phase Extraction, be called for short SPE) be developed recently a kind of Sample Pretreatment Technique Used that gets up, combined by liquid-solid extraction and liquid chromatography technology and develop, be mainly used in separation, the purifying and concentrated of sample, compare with traditional liquid-liquid extraction method and can improve the rate of recovery of analyte, more effective analyte is separated with interfering component, reduce the sample pretreatment process, simple to operate, save time, laborsaving, be widely used in the fields such as medicine, food, environment, commodity inspection, chemical industry.Solid-phase extraction column is a kind of sample pre-treatments device for extracting, separating, concentrate that develops from chromatographic column, is mainly used in the sample pre-treatments of target compound in various food, agricultural and animal products, environmental sample and biological sample.
As shown in Figure 1, the solid-phase extraction column of prior art is entry needle tubular device, comprise a needle cylinder type cylinder 101, be filled with a certain amount of filler 104(adsorbent in the middle of two sieve plates 102 made from polypropylene or glass fiber material, 103, two patches are housed in cylinder 101).The solid-phase extraction column upper end is opened wide, and the lower end is cylinder joint 105, and liquid is through discharging from cylinder joint 105 after adsorbent 104.This solid-phase extraction column in use, the user can directly pour the organic solvent that contains solid particle into 101, slowly flows out from cylinder joint 105 via sieve plate 102, filler 104, sieve plate 103.As shown in Figure 2, the user also can directly be used for the piston 106 of syringe in the interior installation one of cylinder 101, and piston 106 sizes are corresponding with needle cylinder type cylinder 101, and cylinder 101 and piston 106 form a syringe.First piston 106 is arranged in needle cylinder type cylinder 101, makes reserve part inert gas between piston and cylinder; Pushing piston extruding inert gas, discharge the liquid in extraction column as early as possible again.In solid-phase extraction column uses, first process sample solution, separator is attracted on filler 104, and this is retention process; Then add a kind of novel solvent, with the above-mentioned all or part of removal of separator that is attracted on filler 104, this is elution process.
The SPE column volume of prior art is larger, uses filler more, and the solution that needs in elution process is more, and the extracting operation cost is higher.If a plurality of solid-phase extraction columns are worked simultaneously, equipment occupation space is larger, and after operation was completed, relevant device cleaned also cumbersome.
The utility model content
The utility model provides a kind of solid-phase extraction column, efficiently solve the volume that exists in prior art large, use that filler is more, the problem such as the solution that needs in elution process is more, the extracting operation cost is higher.
For realizing above purpose, the utility model discloses following technical scheme:
A kind of solid-phase extraction column comprises a cavity cylinder, is provided with two sieve plates in described cylinder, is provided with filler between two sieve plates.
Further, the sieve plate that is positioned at described cylinder top in two sieve plates is upper sieve plate, and the sieve plate that is positioned at described cylinder below in two sieve plates is lower sieve plate, and described lower sieve plate is positioned at the bottom of described cylinder.
Further, described cylinder one end is provided with a cylinder interface slot, and the other end is provided with a cylinder joint.
Further, described cylinder interface slot is corresponding with the standard syringe joint, and described cylinder joint is identical with the standard syringe joint.
Further, described solid-phase extraction column also comprises a syringe, and the joint of this syringe is connected to described cylinder interface slot.
Further, described filler is adsorbent.
Further, described adsorbent is silica gel or active carbon.
Further, the quality of described adsorbent is 100 ~ 300 milligrams.
Further, described cylinder is cylinder, and the diameter of its cross section is 4 ~ 20 millimeters.
The utility model has the advantage of, effectively reduced the volume of solid-phase extraction column, effectively saved filler, reduced the solution requirements in the elution process, the cost of material that has significantly reduced solid-phase extraction column and extracting operation cost.In addition, the utility model can be guaranteed solution flow rate equally, and is simple to operate, easy to clean.
Description of drawings
Fig. 1 is the structural representation of solid-phase extraction column in prior art;
Fig. 2 is the use view of solid-phase extraction column in prior art;
Fig. 3 is the structural representation of solid-phase extraction column in the utility model;
Fig. 4 is the use view of solid-phase extraction column in the utility model;
The number in the figure explanation:
1, cylinder, 2, upper sieve plate, 3, lower sieve plate, 4, filler, 5, the cylinder interface slot, 6, the cylinder joint, 7, syringe, 8, syringe adapter.
The specific embodiment
Describe the specific embodiment of the present utility model in detail below in conjunction with accompanying drawing, those skilled in the art is more clearly understood how to put into practice the utility model.Although should be appreciated that in conjunction with its preferred specific embodiments and described the utility model, these embodiments are just set forth, rather than limit scope of the present utility model.
As shown in Figure 3, the utility model relates to a kind of solid-phase extraction column, comprises a cavity cylinder 1, is provided with in cylinder 1 between two sieve plates 2,3, two sieve plates 2,3 and is provided with filler 4.Filler 4 is adsorbent, and described adsorbent is silica gel or active carbon, and the solid particle of the solution of the cylinder 1 that is used for flowing through adsorbs.Two sieve plates 2,3 are made for polypropylene or glass fiber material, prevent from that filler 4 from revealing to run off.
The sieve plate that is positioned at cylinder 1 top in two sieve plates is that the sieve plate that is positioned at cylinder 1 below in 2, two sieve plates of upper sieve plate is lower sieve plate 3, and lower sieve plate 3 is positioned at the bottom of cylinder 1.Also the upper spring (not shown) can be fixed with between upper sieve plate 2 and cylinder 1 upper end, also the lower spring (not shown) can be fixed with between lower sieve plate 3 and cylinder 1 lower end.Upper spring, lower spring make the position of filler 4 relatively fixing, can fully contact with the solution of the filler of flowing through, and the solid particle in solution are adsorbed or the solid particle that will adsorb is dissolved in solution.But for the consideration on cost, generally without mounting spring, as long as guarantee can vertically place in cylinder work, also can be so that solution fully contacts with filler even without spring.
Cylinder 1 one ends are provided with a cylinder interface slot 5, and the other end is provided with a cylinder joint 6, and solution flows into from cylinder interface slot 5, through the filler 4 between two sieve plates 2,3, flow out from cylinder joint 6.Cylinder interface slot 5 is corresponding with the standard syringe joint, and namely cylinder interface slot 5 is big or small with the standard syringe joint, shape is corresponding, is convenient to install; Cylinder joint 6 is identical with the standard syringe joint, and cylinder joint 6 is big or small with the standard syringe joint, shape is identical, is convenient to installation code syringe injection needle used.
As shown in Figure 4, solid-phase extraction column described in the utility model also comprises a syringe 7, and the syringe adapter 10 of syringe 7 connects cylinder joint 5, and syringe 7 can inject solution cylinder 1, makes solution flow out by cylinder 1 as early as possible.Syringe 7 can also inject inert gas cylinder 1, and the liquid in cylinder 1 is discharged as early as possible.
The utility model is in use first processed sample solution, with syringe 7, sample solution is injected cylinder 1, and the separator in sample solution is attracted on filler 4, and this is retention process; After syringe 7 is shifted the end onto, if also retain tank solution in cylinder 1, can change syringe, another syringe that contains inert gas is connected on cylinder 1, thereby the solution in cylinder 1 is all discharged.
Then the novel solvent (separator more easily is dissolved in this solvent) that adds a kind of suitable intensity, with syringe 7, this solvent is injected cylinder 1, with the above-mentioned all or part of removal of separator that is attracted on filler 4, thereby reach quick isolation of purified and the purpose that concentrates, this is elution process.
Above-mentioned separator can be the measured matter of user's needs, can be also the impurity that needs are got rid of.
Further, cylinder 1 is cylinder, and the diameter of its cross section is 4 ~ 20 millimeters.The quality of described adsorbent is 100 ~ 300 milligrams.Needle cylinder type cylinder 101 volumes of the volume ratio prior art of cylinder 1 are little a lot, and the adsorbent that needs is also few a lot.The utility model effectively reduced the volume of solid-phase extraction column, effectively saved filler, reduced the solution requirements in the elution process, the cost of material that has significantly reduced solid-phase extraction column and extracting operation cost.In addition, the utility model can be guaranteed solution flow rate equally, and is simple to operate, easy to clean.
The above is only preferred embodiment of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (9)
1. a solid-phase extraction column, comprise a cavity cylinder, it is characterized in that, is provided with two sieve plates in described cylinder, is provided with filler between two sieve plates.
2. solid-phase extraction column as claimed in claim 1, is characterized in that, the sieve plate that is positioned at described cylinder top in two sieve plates is upper sieve plate, and the sieve plate that is positioned at described cylinder below in two sieve plates is lower sieve plate, and described lower sieve plate is positioned at the bottom of described cylinder.
3. solid-phase extraction column as claimed in claim 1, is characterized in that, described cylinder one end is provided with a cylinder interface slot, and the other end is provided with a cylinder joint.
4. solid-phase extraction column as claimed in claim 3, is characterized in that, described cylinder interface slot is corresponding with the standard syringe joint, and described cylinder joint is identical with the standard syringe joint.
5. solid-phase extraction column as claimed in claim 3, is characterized in that, also comprises a syringe, and the joint of this syringe is connected to described cylinder interface slot.
6. solid-phase extraction column as claimed in claim 1, is characterized in that, described filler is adsorbent.
7. solid-phase extraction column as claimed in claim 6, is characterized in that, described adsorbent is silica gel or active carbon.
8. solid-phase extraction column as claimed in claim 7, is characterized in that, the quality of described adsorbent is 100 ~ 300 milligrams.
9. solid-phase extraction column as claimed in claim 1, is characterized in that, described cylinder is cylinder, and the diameter of its cross section is 4 ~ 20 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220712660 CN202942682U (en) | 2012-12-21 | 2012-12-21 | Solid-phase extraction column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220712660 CN202942682U (en) | 2012-12-21 | 2012-12-21 | Solid-phase extraction column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202942682U true CN202942682U (en) | 2013-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220712660 Expired - Lifetime CN202942682U (en) | 2012-12-21 | 2012-12-21 | Solid-phase extraction column |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103877747A (en) * | 2012-12-21 | 2014-06-25 | 上海磐合科学仪器股份有限公司 | Solid-phase extraction column |
| CN104606923A (en) * | 2015-01-16 | 2015-05-13 | 北京大学 | Solid-phase extraction column provided with flexible sieve plate as well as preparation method and application of solid-phase extraction column |
| CN106770786A (en) * | 2017-01-11 | 2017-05-31 | 重庆市农业科学院 | A kind of garden stuff pesticide residue detects fast purification device |
-
2012
- 2012-12-21 CN CN 201220712660 patent/CN202942682U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103877747A (en) * | 2012-12-21 | 2014-06-25 | 上海磐合科学仪器股份有限公司 | Solid-phase extraction column |
| CN104606923A (en) * | 2015-01-16 | 2015-05-13 | 北京大学 | Solid-phase extraction column provided with flexible sieve plate as well as preparation method and application of solid-phase extraction column |
| CN106770786A (en) * | 2017-01-11 | 2017-05-31 | 重庆市农业科学院 | A kind of garden stuff pesticide residue detects fast purification device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 201108 Shanghai Minhang District Jin Road, No. 6, building 2, room B81, building 4299 Patentee after: SHANGHAI IMPACT SCIENTIFIC INSTRUMENT Co.,Ltd. Address before: 201100 room first, building 18-30, No. 88, min Lu, 245 min Road, Shanghai, Minhang District Patentee before: Shanghai Impact Scientific Instrument Co.,Ltd. |
|
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Hong Inventor after: Jiang Jiakui Inventor after: Kang Lei Inventor before: Wang Hong Inventor before: Jiang Jiakui |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WANG HONG JIANG JIAKUI TO: WANG HONG JIANG JIAKUI KANG LEI |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130522 |