CN202166633U - Polyamide solid phase extraction cartridge - Google Patents
Polyamide solid phase extraction cartridge Download PDFInfo
- Publication number
- CN202166633U CN202166633U CN2011200461813U CN201120046181U CN202166633U CN 202166633 U CN202166633 U CN 202166633U CN 2011200461813 U CN2011200461813 U CN 2011200461813U CN 201120046181 U CN201120046181 U CN 201120046181U CN 202166633 U CN202166633 U CN 202166633U
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- polyamide
- silica gel
- phase extraction
- adsorption
- spe
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Abstract
The utility model discloses a polyamide solid phase extraction (SPE) cartridge which belongs to the technical field of SPE, and is used for the preparation of testing samples. The SPE cartridge is a plugless injector structure with a silica gel board, polyamide powder and another silica gel board sequentially filled therein, and the size of each silica gel board is in accordance with the internal diameter of the extraction cartridge. Oven-dried polyamide powder filled in the injector can effectively absorb and desorb target compounds, the polyamide is fixed by the silica gel boards to further achieve efficient adsorption and desorption, and the adsorption effect is stable and even. While improving the working efficiency, the polyamide SPE cartridge provided by the utility model effectively reduces the consumption of both polyamide powder and chemical agent in the adsorption and desorption process in experiments, greatly saves the production cost and lowers the environmental pollution, and has good adsorption and desorption effects, reduces the operational procedures, is environmental-friendly, and is a simple, convenient and feasible experimental appliance with high flux and long retention period.
Description
Technical field
The utility model belongs to the solid phase extraction techniques field, and particularly a kind of polyamide solid-phase extraction column is applied to the preparation of test sample.
Background technology
Solid phase extraction techniques is mainly used in the filtration of moving phase and sample in the stratographic analysis, does not have a good effect to protection chromatographic column and infusion pump guard system and sampling valve etc. are contaminated.It is widely used in gravimetric analysis, microanalysis, colloid separation and the sterility test, is the necessary pre-treatment process of instrument sample introduction.If select for use liquid chromatograph or liquid chromatography mass combined instrument to carry out sample detection; The pre-treatment of sample just needs to increase the process of dehydration; The laboratory a large amount of Silon of normal interpolation is used to adsorb target compound, washes the not material of absorption off, just can detect behind the wash-out again.
The laboratory adopts Silon to extract at present, and consumption is big, and process is complicated.And, cause adsorption effect to be difficult to guarantee owing to can continue from air, to absorb water in the put procedure of polyamide oven dry back, had a strong impact on instrument detecting result's accuracy.And in the adsorption/desorption process, often will use Silon in a large number, this has not only increased the detection cost, has influenced final testing result, but also has caused environmental hazard.Select Silon for use, cause the sample detection more complicated and loaded down with trivial details, therefore, people constantly try to explore various abbreviation step method, in the hope of experimental provision and the method that obtains to improve detection efficiency, improves accuracy in detection.
Summary of the invention
The utility model has overcome the shortcoming that traditional Silon is unstable, use amount is big; In conjunction with the SPE filtering technique; Designed a kind of polyamide solid-phase extraction column, can realize two pre-treatment steps of filtration and dehydration of specimen a step with double medium filtration structure of polyamide dehydration layer and silica gel plate.
Shown in accompanying drawing, the polyamide solid-phase extraction column of the utility model design is a uncork syringe construction, and inside is filling gel plate, Silon, silica gel plate successively; The size of silica gel plate is consistent with the extraction column internal diameter.
Described Silon is of a size of the 60-100 order, dries by the fire 3-18h down at 100-500 ℃ before filling.
The Silon packed height is 5-50mm.
The utlity model has following remarkable result:
Utilize the Silon of oven dry to be filled in the syringe, effective adsorption desorption target compound, and, can a step realize effective adsorption desorption process through the fixing polyamide of silica gel plate, and adsorption effect stablize, even.The polyamide solid-phase extraction column of the utility model design can effectively reduce the use of Silon and chemical reagent in the experiment adsorption desorption process when improving work efficiency, save production cost significantly and reduce environmental pollution.In sum this solid-phase extraction column adsorption desorption effective, can reduce operating process, environmental friendliness, be a kind of easy, experimental article of being prone to row, high flux, long shelf-life.
Description of drawings
Fig. 1 is the structural representation of the polyamide solid-phase extraction column of the utility model design; 1 is silica gel plate, and 2 is Silon, and 3 is silica gel plate.
Embodiment
Below in conjunction with embodiment the utility model is done further to describe.
Embodiment 1:
Shown in accompanying drawing, the polyamide solid-phase extraction column of the utility model design is a uncork syringe construction, inner filling gel plate successively, 200 ℃ of 60 order Silons, silica gel plates that dry by the fire 8h down; The diameter of silica gel plate is consistent with the extraction column internal diameter; The Silon packed height is 20mm; The silica gel plate compacting is sealed up for safekeeping.
Embodiment 2:
Shown in accompanying drawing, the polyamide solid-phase extraction column of the utility model design is a uncork syringe construction, inner filling gel plate successively, 150 ℃ of 80 order Silons, silica gel plates that dry by the fire 10h down; The diameter of silica gel plate is consistent with the extraction column internal diameter; The Silon packed height is 20mm; The silica gel plate compacting is sealed up for safekeeping.
Embodiment 3:
Shown in accompanying drawing, the polyamide solid-phase extraction column of the utility model design is a uncork syringe construction, inner filling gel plate successively, 100 ℃ of 100 order Silons, silica gel plates that dry by the fire 15h down; The diameter of silica gel plate is consistent with the extraction column internal diameter; The Silon packed height is 20mm; The silica gel plate compacting is sealed up for safekeeping.
Claims (4)
1. a polyamide solid-phase extraction column is characterized in that, shown in accompanying drawing, this polyamide solid-phase extraction column is a uncork syringe construction, and inside is filling gel plate, Silon, silica gel plate successively; The size of silica gel plate is consistent with the internal diameter of extraction column.
2. a kind of polyamide solid-phase extraction column according to claim 1 is characterized in that described Silon is of a size of the 60-100 order.
3. a kind of polyamide solid-phase extraction column according to claim 1 and 2 is characterized in that, dries by the fire 3-18h down at 100-500 ℃ before described Silon is filled.
4. a kind of polyamide solid-phase extraction column according to claim 1 and 2 is characterized in that the Silon packed height is 5-50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200461813U CN202166633U (en) | 2011-02-24 | 2011-02-24 | Polyamide solid phase extraction cartridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200461813U CN202166633U (en) | 2011-02-24 | 2011-02-24 | Polyamide solid phase extraction cartridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202166633U true CN202166633U (en) | 2012-03-14 |
Family
ID=45802450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200461813U Expired - Fee Related CN202166633U (en) | 2011-02-24 | 2011-02-24 | Polyamide solid phase extraction cartridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202166633U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091150A (en) * | 2012-11-13 | 2013-05-08 | 中国农业科学院农业质量标准与检测技术研究所 | Multifunctional needle type filter |
-
2011
- 2011-02-24 CN CN2011200461813U patent/CN202166633U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091150A (en) * | 2012-11-13 | 2013-05-08 | 中国农业科学院农业质量标准与检测技术研究所 | Multifunctional needle type filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yu Wenjing Inventor after: Zheng Chen Inventor after: Zheng Li Inventor after: Shen Jie Inventor before: Zheng Chen Inventor before: Yu Wenjing Inventor before: Shen Jie |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHENG CHEN YU WENJING SHEN JIE TO: YU WENJING ZHENG CHEN ZHENG LI SHEN JIE |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120314 Termination date: 20150224 |
|
| EXPY | Termination of patent right or utility model |