CN202305492U - Device for coating stationary phase in capillary column - Google Patents
Device for coating stationary phase in capillary column Download PDFInfo
- Publication number
- CN202305492U CN202305492U CN2011204209770U CN201120420977U CN202305492U CN 202305492 U CN202305492 U CN 202305492U CN 2011204209770 U CN2011204209770 U CN 2011204209770U CN 201120420977 U CN201120420977 U CN 201120420977U CN 202305492 U CN202305492 U CN 202305492U
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- CN
- China
- Prior art keywords
- capillary column
- coating liquid
- stationary phase
- closed container
- coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a device for coating a stationary phase in a capillary column. The device comprises a closed container which is used for containing coating liquid, wherein an insertion opening is formed at the top of the closed container; an elastic sealing plug is filled into the insertion opening; a through hole into which the capillary column is inserted is formed in the elastic sealing plug; and the inner wall of the through hole is in interference fit with the outer wall of the capillary column to be processed. By adoption of the device, the coating liquid can be degasified and poured at one time, the success rate of coating of the stationary phase in the capillary column is improved to be over 95 percent, and the thickness uniformity of the formed stationary phase is high.
Description
Technical field
The utility model relates to a kind of perfusion in capillary column, applies the device of stationary phase.
Background technology
Capillary chromatographic column is applied in the analyzing and testing field widely; Capillary chromatographic column mainly is made up of the capillary column and the related accessory of glass or metal material; Wherein the inwall of capillary column is coated with stationary phase, and its performance has critical influence to detecting effect.
Adding man-hour generally is stationary phase to be dissolved or is dispersed in be configured to coating liquid in the organic solvent, then coating liquid is fed in the capillary column, through vacuum drying the stationary phase material is being covered at the capillary column inwall again.
Coating liquid is dissolved with little air in the prior art, if do not handle the film that is difficult to form uniform in thickness after the stationary phase drying, makes to apply success ratio only about 10%.
The utility model content
The utility model provides a kind of air that can remove in the coating liquid, and can be disposable the coating unit of completion coating liquid perfusion.
A kind of coating unit of capillary column internal fixation phase; Comprise the closed container that is used for the splendid attire coating liquid; This closed container top is provided with interface; This interface place is filled with the resilient seal plug, and this resilient seal is provided with the through hole that is used to insert capillary column beyond the Great Wall, and interference fit between the outer wall of the inwall of described through hole and capillary column to be processed.
Coating liquid when the utility model coating unit uses in the heating closed container; And the end that capillary column to be processed inserts in the closed container is positioned on the liquid level of coating liquid, and along with the rising of temperature, the air of dissolving can be discharged gradually in the coating liquid; Discharge another port through capillary column to be processed; The basic emptying of air of in coating liquid after the coating liquid boiling, dissolving, be inserted into the end that capillary column to be processed inserts in the closed container under the liquid level of coating liquid this moment, and the coating liquid solvent of gasification raises the closed container internal pressure; Then coating liquid is pressed in the capillary column to be processed, has also just accomplished the perfusion of coating liquid.
After accomplishing perfusion; Capillary column to be processed is in the outer port sealing of closed container; Again capillary column to be processed is extracted closed container, make the solvent evaporates in the coating liquid through vacuum drying at last, and residue forms stationary phase at capillary column inwall to be processed.
The utility model coating unit can disposable completion coating liquid the degassing and perfusion, the coating success ratio of capillary column stationary phase is increased to more than 95%, the stationary phase uniform in thickness property of formation is good.
Description of drawings
Fig. 1 is the structural representation of the utility model coating unit;
Fig. 2 accomplishes the structural representation when pouring into after the degassing for the coating unit among Fig. 1.
Embodiment
Referring to accompanying drawing; The coating unit of a kind of capillary column internal fixation of the utility model phase; Comprise the closed container 1 that is used for splendid attire coating liquid 2, this closed container 1 top is provided with interface, and this interface place is filled with resilient seal plug 4; Resilient seal plug 4 is provided with the through hole that is used to insert capillary column 5, interference fit between the outer wall of the inwall of through hole and capillary column to be processed 5.
Closed container 1 top can also be provided with gland bonnet 3, and gland bonnet 3 is closed during use, the coating liquid 2 of being convenient to annotate when gland bonnet 3 is opened.
Coating liquid when the utility model coating unit uses in the heating closed container; And the end that capillary column to be processed inserts in the closed container is positioned on the liquid level of coating liquid; Rising along with temperature; The air of dissolving can get into capillary column along the arrow A direction in the coating liquid, discharges through the another port of capillary column.
The basic emptying of air of in coating liquid after the coating liquid boiling, dissolving; Be inserted into the end that capillary column to be processed inserts in the closed container under the liquid level of coating liquid this moment; The coating liquid solvent of gasification raises the closed container internal pressure; The arrow B direction is exerted pressure to the liquid level of coating liquid, then coating liquid is pressed in the capillary column along the arrow C direction, has also just accomplished the perfusion of coating liquid.
After accomplishing perfusion, capillary column is in the outer port sealing of closed container, again capillary column to be processed is extracted closed container, make the solvent evaporates in the coating liquid through vacuum drying at last, and residue forms stationary phase at capillary column inwall to be processed.
The utility model coating unit can disposable completion coating liquid the degassing and perfusion, the coating success ratio of capillary column stationary phase is increased to more than 95%, the stationary phase uniform in thickness property of formation is good.
Claims (1)
1. the coating unit of a capillary column internal fixation phase; Comprise the closed container that is used for the splendid attire coating liquid; It is characterized in that this closed container top is provided with interface, this interface place is filled with the resilient seal plug; This resilient seal is provided with the through hole that is used to insert capillary column beyond the Great Wall, and interference fit between the outer wall of the inwall of described through hole and capillary column to be processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204209770U CN202305492U (en) | 2011-10-31 | 2011-10-31 | Device for coating stationary phase in capillary column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204209770U CN202305492U (en) | 2011-10-31 | 2011-10-31 | Device for coating stationary phase in capillary column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202305492U true CN202305492U (en) | 2012-07-04 |
Family
ID=46374364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204209770U Expired - Fee Related CN202305492U (en) | 2011-10-31 | 2011-10-31 | Device for coating stationary phase in capillary column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202305492U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091431A (en) * | 2011-10-31 | 2013-05-08 | 天津市科密欧化学试剂有限公司 | Coating apparatus for immobile phase in capillary column |
-
2011
- 2011-10-31 CN CN2011204209770U patent/CN202305492U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103091431A (en) * | 2011-10-31 | 2013-05-08 | 天津市科密欧化学试剂有限公司 | Coating apparatus for immobile phase in capillary column |
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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: 20120704 Termination date: 20161031 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |