CN2553381Y - High efficient liquid phase chromatographic column - Google Patents
High efficient liquid phase chromatographic column Download PDFInfo
- Publication number
- CN2553381Y CN2553381Y CN 02274338 CN02274338U CN2553381Y CN 2553381 Y CN2553381 Y CN 2553381Y CN 02274338 CN02274338 CN 02274338 CN 02274338 U CN02274338 U CN 02274338U CN 2553381 Y CN2553381 Y CN 2553381Y
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- CN
- China
- Prior art keywords
- column
- sealing
- joint
- column joint
- chromatographic column
- 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 high efficient liquid phase chromatographic column, which consists of a column joint, a filtrating device, a sealing device and a column pipe. A pipeline is provided for implementation. The column joint is a hollow compression cap with inner screw thread, which is connected with the column pipe through a fixing snail and the sealing device; the fixing snail is provided with outer screw thread. The sealing device consists of a sealing terminal and an annular sealing ring. The sealing terminal is arranged between the column joint and the filtrating device. Compared with prior art, the utility model solves the problem that the pipeline connecting snail is easy to break in the column joint screw hole to scrap the column joint. The sealing terminal can be disassembled freely, which promises repeated chromatographic column usages. Also the sealing column and the filtrating net war easy to clean. As the sealing ring is made of polytetrafluoroethylene, the sealing of the column is more convenient and reliable, which guarantees that the column can be filled again and again without any damage.
Description
Technical field
The utility model relates to a kind of liquid-phase chromatographic column.
Background technology
Chromatographic column is obligato parts in the liquid chromatography instrument.Traditional liquid-phase chromatographic column as shown in Figure 1, form by column joint, filtration unit, packoff and column jecket, column joint 1 ' be one is provided with externally threaded hollow joint, by fixed screw 6 ' and packoff 5 ' with column jecket 7 ' link to each other, its filtration unit by distribution plate 2 ', filter screen 3 ' and filter membrane 4 ' form, with pipeline 9 ' be connected by a pipeline connecting screw 8 ' and steel edge ring 10 ' fixing.Steel edge ring mode is adopted in this column jecket 7 ' sealing.Sealing property obviously descends after dismounting several times, and sword ring 5 ' stuck column jecket 7 ' on can't change, make column jecket 7 ' local deformation, and pipeline connecting screw 8 ' frangibility makes column joint 1 ' scrap in column joint 1 ' screw the time, do not reach the purpose of recycling repeatedly.In addition, column joint manufacturing process complexity is difficult to guarantee the drawing precision prescribed, mismachining tolerance occurs and is difficult for checking.
The utility model content
The purpose of this utility model is to provide a kind of can overcome the shortcoming that exists in the prior art, has good seal, quick detachable, a kind of liquid-phase chromatographic column that can recycle repeatedly.
In order to achieve the above object, the technical solution of the utility model is:
A kind of liquid-phase chromatographic column is made up of column joint, filtration unit, packoff and column jecket, cooperates pipeline and implements, and column joint is one to be provided with the hollow pressure cap of internal thread, is provided with externally threaded connecting screw and packoff links to each other with column jecket by one; Packoff is a hermetic terminal and a grommet type seals, and hermetic terminal is located between column joint and the filtration unit, and grommet type seals is located between column jecket and the filtration unit; The termination of column jecket is provided with screw thread, is connected with connecting screw.
Above-mentioned O-ring seal is a polytetrafluoroethylmaterial material.
Advantage of the present utility model and effect:
1. compared with prior art, the column joint of chromatographic column is resolved into hollow pressure cap and two individual part of hermetic terminal, its objective is simplified processing process and solve the problem that column joint is scrapped in case occur that the pipeline connecting screw fractures in the column joint screw, its hermetic terminal can freely be dismantled, make the chromatographic column column jecket repeatedly to use, and column sealing and filter screen clean easier.Reduce the column joint difficulty of processing simultaneously, reached tolerance easily, easy to detect.
2. sealing adopts soft seal to connect for column jecket, common steel edge ring is made into teflin ring, because the yielding characteristic of teflon does not produce any damage to pipe, torsion that need not be very big just can reach the purpose of (more than the 40Mpa) high pressure sealing.Even sealing property descends, only need to change a slight polytetrafluoroethylene gasket, can recover as before.The sealing part makes the sealing of pillar easier, more reliable, can guarantee column jecket repeatedly load use repeatedly without any damage.
3. the utility model is applicable to efficient liquid phase chromatographic analysis, can be connected with domestic and international all liquid chromatographs.
Description of drawings
Fig. 1 is the structural representation of conventional chromatogram post;
Fig. 2 is a structural representation of the present utility model;
Fig. 3 is a combination section of the present utility model;
Fig. 4 is the structural representation of another embodiment of the present utility model.
Embodiment
Shown in Fig. 2,3, the utility model provides a kind of liquid-phase chromatographic column, is made up of column joint, filtration unit, packoff and column jecket, cooperates external pipeline and implements, and external pipeline comprises metallic seal sword ring 10, pipeline 9 and pipeline connecting screw 8.Column joint 1 is one to be provided with the hollow pressure cap of internal thread, and the hollow pressure cap is cylindrical, and its surface is provided with the netted rag that has convex-concave point, is beneficial to turn-knob, also can be made into sexangle; Packoff is a hermetic terminal 2 and a grommet type seals 5, hermetic terminal 2 is located between column joint 1 and the filtration unit, hermetic terminal 2 one ends are big, one end is little, a big end can be built in the column joint 1, and cooperate with filtration unit, a little end cooperates with the sealing sword ring 10 of connecting line, and O-ring seal 5 adopts polytetrafluoroethylmaterial materials to make; Filtration unit is made up of filter screen 3 and filter membrane 4; Connecting screw 6 is a hollow, and a port is provided with the external thread of protrusion, and a port is an internal thread.The termination of column jecket 7 is provided with screw thread, is connected with connecting screw 6.
During installation, earlier O-ring seal 5 is enclosed within on the column jecket 7, with connecting screw 6 column jecket 7 is screwed, then, filter membrane 4 and filter screen 3 on placing successively before column jecket 7 upper port are built in hermetic terminal 2 in the column joint 1 lower end screw again, aim at connecting screw 6, column joint 1 is enclosed within on the connecting screw 6, and is tightened.9 of connecting lines are clamped in the upper end screw of column joint 1 by a metallic seal sword ring 10, and fixing with being provided with externally threaded pipeline connecting screw 8.The installation of column jecket 7 other ends is the same.
During dismounting, only need turn on column joint 1, hermetic terminal 2 is taken off, can wash replacing, and change the filler in the column jecket 7, make the chromatographic column column jecket repeatedly to use filter screen 3.
If pipeline connecting screw 8 fractures in column joint 1, only need turn on column joint 1, hermetic terminal 2 to be taken off, the connecting screw 8 that can will fracture in column joint 1 is taken out.
As shown in Figure 4, the utility model provides another kind of liquid-phase chromatographic column, form by column joint, filtration unit, packoff and column jecket, with the difference of last embodiment for being provided with distribution plate 11, place in the hermetic terminal 2.About the effect of distribution plate, experimental results show that the chromatographic column of column internal diameter less than 5mm, the radial expansion coupled columns is imitated influence and not obvious, so the above pillar of general coupled columns footpath 5mm uses distribution plate.
Claims (2)
1. performance liquid chromatographic column, form by column joint, filtration unit, packoff and column jecket, cooperate pipeline and implement, it is characterized in that: column joint is one to be provided with the hollow pressure cap of internal thread, is provided with externally threaded connecting screw and packoff links to each other with column jecket by one; Packoff is a hermetic terminal and a grommet type seals, and hermetic terminal is located between column joint and the filtration unit, and grommet type seals is located between column jecket and the filtration unit; The termination of column jecket is provided with screw thread, is connected with connecting screw.
2. according to the described performance liquid chromatographic column of claim 1, it is characterized in that: O-ring seal is a polytetrafluoroethylmaterial material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02274338 CN2553381Y (en) | 2002-07-24 | 2002-07-24 | High efficient liquid phase chromatographic column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02274338 CN2553381Y (en) | 2002-07-24 | 2002-07-24 | High efficient liquid phase chromatographic column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2553381Y true CN2553381Y (en) | 2003-05-28 |
Family
ID=33738622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02274338 Expired - Fee Related CN2553381Y (en) | 2002-07-24 | 2002-07-24 | High efficient liquid phase chromatographic column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2553381Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329312B (en) * | 2008-07-31 | 2011-02-16 | 浙江大学 | Chromatographic column |
| CN102841166A (en) * | 2011-06-20 | 2012-12-26 | 苏州赛分科技有限公司 | Liquid chromatographic column |
| CN105004823A (en) * | 2015-07-23 | 2015-10-28 | 上海谱宁分析技术有限公司 | Liquid-phase chromatographic column assembly joint and application thereof |
| CN105264371A (en) * | 2013-03-11 | 2016-01-20 | 积水医疗株式会社 | Column device for liquid chromatography and liquid chromatography device |
| CN105612425A (en) * | 2013-09-30 | 2016-05-25 | 积水医疗株式会社 | Column contained in container and column container |
-
2002
- 2002-07-24 CN CN 02274338 patent/CN2553381Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101329312B (en) * | 2008-07-31 | 2011-02-16 | 浙江大学 | Chromatographic column |
| CN102841166A (en) * | 2011-06-20 | 2012-12-26 | 苏州赛分科技有限公司 | Liquid chromatographic column |
| CN105264371A (en) * | 2013-03-11 | 2016-01-20 | 积水医疗株式会社 | Column device for liquid chromatography and liquid chromatography device |
| CN105264371B (en) * | 2013-03-11 | 2018-07-20 | 积水医疗株式会社 | The column device and liquid chromatography device of phase chromatography-use |
| CN105612425A (en) * | 2013-09-30 | 2016-05-25 | 积水医疗株式会社 | Column contained in container and column container |
| US9689848B2 (en) | 2013-09-30 | 2017-06-27 | Sekisui Medical Co., Ltd. | Column contained in container and column container |
| CN105612425B (en) * | 2013-09-30 | 2017-08-08 | 积水医疗株式会社 | It is accommodated in the post and post accommodating container of accommodating container |
| CN105004823A (en) * | 2015-07-23 | 2015-10-28 | 上海谱宁分析技术有限公司 | Liquid-phase chromatographic column assembly joint and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |