CN202145204U - Liquid phase chromatographic column - Google Patents
Liquid phase chromatographic column Download PDFInfo
- Publication number
- CN202145204U CN202145204U CN201120208515U CN201120208515U CN202145204U CN 202145204 U CN202145204 U CN 202145204U CN 201120208515 U CN201120208515 U CN 201120208515U CN 201120208515 U CN201120208515 U CN 201120208515U CN 202145204 U CN202145204 U CN 202145204U
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- CN
- China
- Prior art keywords
- pressure cap
- chromatographic column
- column
- groove
- column jecket
- Prior art date
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Abstract
The utility model discloses a novel liquid phase chromatographic column, wherein external threads are formed outside the two end portions of a column tube; a pressure cap is provided with internal threads; and a circular groove is formed at the circumference of a through hole formed in the inner wall surface of one side of the pressure cap which is connected with the column tube. When the chromatographic column is mounted, the annular tube wall of any end of the column tube is in tight contact with a sealing gasket arranged in the groove of the pressure cap. With such a structure, the common joint used in the chromatographic column is omitted and the sealing gasket arranged in the groove of the pressure cap of the chromatographic column, so that the manufacturing cost of the chromatographic column can be reduced and the tightness of the liquid phase chromatographic column is improved.
Description
Technical field
The utility model relates to separation, the analysis technical field of chemicals, relates in particular to a kind of liquid-phase chromatographic column.
Background technology
The liquid chromatography isolation technics is to be used for effectively separating the blend sample with various ingredients, and core component is the liquid chromatography separating column.Its separation principle is; The blending ingredients sample is dissolved in a kind of moving phase, and moving phase flows through the chromatograph packing material of can in chromatographic column with certain flow velocity under the condition of bigger pressure; Because chromatograph packing material is to the difference of the absorption affinity of different component; So different component will flow through chromatograph packing material with different flow rate, and detect time and each components contents that different component flows out chromatographic column in the detecting device of liquid chromatograph, thus the purpose that reaches separation, detects.Chromatographic column is general to adopt high-grade stainless steel to process.Sieve plate is sintered stainless steel or titanium alloy, and the aperture is 0.2～20um, in order to prevent the outflow of chromatograph packing material, prevents the Interference Detection effect.
But in liquid-phase chromatographic column commonly used, the joint location at two ends adopts the rigidly connected mode of pressure cap and joint to be connected usually.This kind connected mode is to need two parts (being pressure cap and joint) being spirally connected just can reach sealing, and cost is higher.Therefore, be necessary existing liquid chromatography separating column is further improved,, improve the impermeability of chromatographic column to reduce the manufacturing cost of chromatographic column.
The utility model content
The purpose of the utility model is to propose a kind of novel liquid phase chromatographic column, and it can realize reducing the manufacturing cost of chromatographic column, improves the bubble-tight purpose of chromatographic column.
For realizing above-mentioned purpose, the utility model provides a kind of novel liquid phase chromatographic column, and the outside, end at said column jecket two ends is provided with external thread, and pressure cap is provided with internal thread, is provided with a circle groove around the through hole of the internal face of the side that pressure cap and column jecket join.
As the further improvement of the utility model, be provided with a sieve plate in the middle of the groove of said pressure cap.
As the further improvement of the utility model, the groove groove width of said pressure cap is greater than the wall thickness of the arbitrary end of column jecket end column jecket.
As the further improvement of the utility model, be provided with a packing washer in the groove of said pressure cap.
As the further improvement of the utility model, the internal thread of said pressure cap equates with the externally threaded pitch of column jecket.
As the further improvement of the utility model, the stroke of said pressure cap internal thread is greater than the externally threaded stroke in end, column jecket two ends.
As the further improvement of the utility model, the internal thread of said pressure cap and the external thread of column jecket reliably are spirally connected, and the ring-type post jamb of column jecket closely contacts with the packing washer of the groove setting of nut, in order to the positiver sealing column jecket.
As the further improvement of the utility model, said packing washer is processed by teflon.
Compared with prior art, a kind of liquid-phase chromatographic column of the utility model has saved joint commonly used.Be provided with a circle groove around the through hole of the contacted side of pressure cap and column jecket.After pressure cap and column jecket were spirally connected, the packing washer that is provided with in the ring-type post jamb of column jecket and the groove of pressure cap closely contacted.Thereby realized chromatographic column two ends good sealing property.And this chromatographic column structure is simple, manufacturing cost is lower, has good and economic.
Description of drawings
Accompanying drawing is used to provide the further understanding to the utility model, is used to explain the utility model with each embodiment of the utility model, but does not constitute the restriction to the utility model.In the accompanying drawings:
Fig. 1 does not add the A-A cut-open view of sealing filler ring for a kind of novel liquid phase chromatographic column.
Fig. 2 has added the A-A cut-open view of sealing filler ring for a kind of novel liquid phase chromatographic column.
Embodiment
Describe below in conjunction with the preferred embodiment of accompanying drawing, should be appreciated that preferred embodiment described herein only is used for explanation and explains the utility model, and be not used in qualification the utility model the utility model.
A-A cut-open view with reference to a kind of novel liquid phase chromatographic column in the utility model one embodiment shown in Figure 1.The chromatography separation principle is: be dissolved in when each component is through stationary phase in the moving phase (Mobile Phase); Because with the have an effect size, strong and weak different of (absorption, distribution, ion attraction, exclusion, affine) of stationary phase (Stationary Phase); The difference of hold-up time in stationary phase, thus successively from stationary phase, flow out.Liquid chromatography send out the incipient stage be with large diameter glass tube column under normal temperature and normal pressure with the liquid level difference transport flow mutually, claim " classical liquid phase chromatography ", the method inferior separating effect, length consuming time again.People have begun the method for research and utilization drive of high-pressure gas moving phase for this reason, claim again high performance liquid chromatography (High performance Liquid Chromatography, HPLC).Utilize this method carry out separation component efficient, fast, resolution is high, highly sensitive, so be called " MLC " again.Adopt the instrument of this kind technology just to be called " high performance liquid chromatograph ", its most important parts are exactly separating column.Separating column is generally processed by stainless steel; Inner wall smooth; Cavity is wherein filled out and can be filled various fillers (stationary phase); Utilize different fillers that different component is had the absorption of specificity property, distribution, ion attraction, exclusion, affine effect, (mainstream technology adopts suction-operated at present) makes the different component difference of the hold-up time in stationary phase, thereby successively from stationary phase, flows out.And detect various components through detecting device and be cut into branch and the time of flowing out separating column really, thereby reach the purpose of separations, detection.
In the present embodiment, a kind of novel liquid phase chromatographic column comprises pressure cap 1, column jecket 2, filler 9, sieve plate 8, and the end at column jecket 2 two ends is provided with external thread 3, and pressure cap 1 is provided with a circle groove 10 on every side with the through hole 7 of the internal face of a side of column jecket 3 bolts.The groove 10 groove width 10a of pressure cap 1 are greater than the wall thickness 3a of column jecket 2 arbitrary end end column jeckets.
With reference to accompanying drawing 2, wherein, be provided with a packing washer 4 in the groove 10 of pressure cap 1.The stroke of pressure cap 1 internal thread 5a is greater than the stroke of end, column jecket 2 two ends external thread 3.The internal thread 5a of pressure cap 1 and the external thread 3 of column jecket 2 reliably are spirally connected, and the ring-type post jamb 3a of column jecket 2 and the groove of pressure cap 1 10 are chimeric and closely contact with packing washer 4.
In this embodiment, saved joint.Be provided with a circle groove around the through hole of the contacted side of pressure cap and column jecket.After pressure cap and column jecket were spirally connected, the packing washer that is provided with in the ring-type post jamb of column jecket and the groove of pressure cap closely contacted.Thereby reached raising chromatographic column sealing, summarized chromatogram rod structure, the purpose of reduction chromatographic column manufacturing cost.
Be to be understood that; Though this instructions is described according to embodiment; But be not that each embodiment only comprises an independently technical scheme, this narrating mode of instructions only is for clarity sake, and those skilled in the art should make instructions as a whole; Technical scheme among each embodiment also can form other embodiments that it will be appreciated by those skilled in the art that through appropriate combination.
The listed a series of detailed description of preceding text only is specifying to the feasibility embodiment of the utility model; They are not the protection domain in order to restriction the utility model, allly do not break away from equivalent embodiment or the change that the utility model skill spirit done and all should be included within the protection domain of the utility model.
Claims (8)
1. novel liquid phase chromatographic column; Comprise: pressure cap, column jecket, filler, sieve plate; It is characterized in that: the outside, end at said column jecket two ends is provided with external thread, and pressure cap is provided with internal thread, is provided with a circle groove around the through hole of the internal face of the side that pressure cap and column jecket join.
2. chromatographic column according to claim 1 is characterized in that: be provided with a sieve plate in the middle of the groove of said pressure cap.
3. chromatographic column according to claim 1 is characterized in that: the groove groove width of said pressure cap is greater than the wall thickness of the arbitrary end of column jecket end column jecket.
4. chromatographic column according to claim 1 is characterized in that: be provided with a packing washer in the groove of said pressure cap.
5. chromatographic column according to claim 1 is characterized in that: the internal thread of said pressure cap equates with the externally threaded pitch of column jecket.
6. chromatographic column according to claim 1 is characterized in that: the stroke of said pressure cap internal thread is greater than the externally threaded stroke in end, column jecket two ends.
7. chromatographic column according to claim 1 is characterized in that: the internal thread of said pressure cap and the external thread of column jecket reliably are spirally connected, and the ring-type post jamb of column jecket closely contacts with the packing washer of the groove setting of nut, in order to the positiver sealing column jecket.
8. chromatographic column according to claim 1 is characterized in that: said packing washer is processed by teflon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120208515U CN202145204U (en) | 2011-06-20 | 2011-06-20 | Liquid phase chromatographic column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120208515U CN202145204U (en) | 2011-06-20 | 2011-06-20 | Liquid phase chromatographic column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202145204U true CN202145204U (en) | 2012-02-15 |
Family
ID=45581135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120208515U Expired - Lifetime CN202145204U (en) | 2011-06-20 | 2011-06-20 | Liquid phase chromatographic column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202145204U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102841168A (en) * | 2011-06-20 | 2012-12-26 | 苏州赛分科技有限公司 | Liquid chromatographic column |
| CN103090824A (en) * | 2013-01-15 | 2013-05-08 | 苏州赛分科技有限公司 | Measuring method for liquid chromatogram filler bore diameter |
| CN110208445A (en) * | 2019-07-09 | 2019-09-06 | 常州三泰科技有限公司 | Liquid-phase chromatographic column column tube and liquid-phase chromatographic column |
-
2011
- 2011-06-20 CN CN201120208515U patent/CN202145204U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102841168A (en) * | 2011-06-20 | 2012-12-26 | 苏州赛分科技有限公司 | Liquid chromatographic column |
| CN103090824A (en) * | 2013-01-15 | 2013-05-08 | 苏州赛分科技有限公司 | Measuring method for liquid chromatogram filler bore diameter |
| CN103090824B (en) * | 2013-01-15 | 2015-04-01 | 苏州赛分科技有限公司 | Measuring method for liquid chromatogram filler bore diameter |
| CN110208445A (en) * | 2019-07-09 | 2019-09-06 | 常州三泰科技有限公司 | Liquid-phase chromatographic column column tube and liquid-phase chromatographic column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120215 |