CN204719012U - Be applicable to conductive structure and the column oven of chromatographic column temperature control - Google Patents
Be applicable to conductive structure and the column oven of chromatographic column temperature control Download PDFInfo
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- CN204719012U CN204719012U CN201520272803.2U CN201520272803U CN204719012U CN 204719012 U CN204719012 U CN 204719012U CN 201520272803 U CN201520272803 U CN 201520272803U CN 204719012 U CN204719012 U CN 204719012U
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Abstract
The utility model provides a kind of conductive structure and the column oven that are applicable to chromatographic column temperature control.Described conductive structure is the metal hollow pipe of an at least one end opening, and further, described hollow tubular is provided with hole, described hole and opening are provided with heat-insulating plug, during use, chromatographic column is placed in metal hollow pipe, and its kapillary passes from the open at one end of metal hollow pipe or hole.The utility model can improve speed and the efficiency of heat conduction preferably, avoid heat loss well, ensure that chromatographic column absorbs the homogeneity of heat simultaneously, be conducive to the accuracy improving experimental data, and all have good applicability for the chromatographic column of different column length, structure is simple, functional strong with applicability, effectively can ensure efficiency and the homogeneity of heat trnasfer.
Description
Technical field
The utility model relates to compound separation and detection technique field, more specifically, relates to a kind of conductive structure and the column oven that are applicable to chromatographic column temperature control.
Background technology
Liquid chromatograph principle of work: be dissolved in each component in mobile phase through Stationary liquid, the size, strong and weak different of (absorption, distribution, ion attraction, exclusion, affine) owing to having an effect from Stationary liquid, in Stationary liquid, the hold-up time is different, thus successively flows out from Stationary liquid.Temperature affects the separating effect of liquid chromatography.For ensureing the degree of accuracy measured, chromatographic column being incubated it as in column oven, maintaining stationary temperature.
Column oven is used for making column temperature keep certain, its temperature regulates and is roughly divided into air circulating type, liquid bath type and module heated type, wherein the column oven structure of air circulating type as shown in Figure 1,1 is chromatographic column, 2 is metal heat-conducting structure, and 3 is kapillary, and metal heat-conducting structure 2 is two panels sheet metal, the kapillary of chromatographic column front end connects the mobile phase of liquid phase pump outflow, and the kapillary of rear end connects detecting device.Chromatographic column 1 is positioned between two pieces of sheet metals, the heat relying on two pieces of sheet metals to produce to circulate heat by conduction (temperature controlling range is approximately-5 DEG C to 100 DEG C) through air, realize heat conduction with sheet metal through air transmitted and there is the accuracy that the defects such as heat-transfer rate is slow, heat conduction homogeneity is bad not only affect testing result, also affect the serviceable life of chromatographic column to a certain extent.
Utility model content
The technical problems to be solved in the utility model is, the defect such as heat conduction homogeneity bad slow for the column oven heat-transfer rate of existing air circulating type, provide that a kind of heat-transfer rate is fast, heat conduction evenly and be applicable to the column oven conductive structure of different column length chromatographic column.
Another technical matters to be solved in the utility model is to provide the column oven with above-mentioned conductive structure.
Above-mentioned purpose of the present utility model is achieved by the following technical programs:
There is provided a kind of conductive structure being applicable to chromatographic column temperature control, described conductive structure is the metal hollow pipe of an at least one end opening, and described opening is provided with heat-insulating plug.Described metal hollow pipe two ends have place's opening at least, are convenient to kapillary and pass from opening part.Described metal hollow pipe can both ends open, convenient operation.
In the pipe of described metal hollow pipe space size and chromatographic column suitable.
Preferably, described metal hollow pipe is arranged porose, described hole is provided with heat-insulating plug.
Preferably, the length of described metal hollow pipe is 65mm to 315mm.
Preferably, 60mm, 110mm, 160mm, 210mm of counting from one end of described metal hollow pipe and 260 mm open a hole respectively.Increase applicability to the liquid-phase chromatographic column of different column length, go for column length and be respectively 50mm, 100mm, 150mm, 200mm, 250mm and 300mm liquid-phase chromatographic column, so that the passing of kapillary.
Described metal hollow pipe can be hollow cylinder, tetragonal prism or polygon post, and preferably, described metal hollow pipe is hollow cylinder.
Further preferably, the internal diameter of described cylinder is for being 15mm ~ 40mm.
Further preferably, the internal diameter of described cylinder is for being 35mm.
Further preferred, described hole is circular hole, and the diameter of preferred described circular hole is 3mm.
The utility model provides a kind of column oven simultaneously, comprises heating arrangement, also comprises above-mentioned conductive structure, and in the pipe of the metal hollow pipe of described conductive structure, chromatographic column is placed in space, and the kapillary of described chromatographic column passes from the hole metal hollow pipe or opening.
The beneficial effects of the utility model are as follows:
The utility model provide a kind of newly be applicable to chromatographic conductive structure, conductive structure is set to tubular structure, avoids heat loss, improve the speed of heat conduction, and increase the homogeneity of heat conduction.
The utility model aperture that scientific offering passes for kapillary on metal hollow pipe, ensures that conductive structure is applicable to the temperature control operation of the chromatographic column of different column length.
Further, conductive structure is set to cylindrical shape by the utility model, further ensures the homogeneity of heat conduction, contributes to the accuracy realizing temperature control, thus finally contributes to obtaining good experimental repeatability.
Based on described conductive structure, the column oven that the utility model provides, the chromatographic column in described column oven, based on described conductive structure, ensure that chromatographic column absorbs the homogeneity of heat, is conducive to the accuracy improving experimental data; Further, experimentally the column length of conventional chromatographic column, is respectively arranged with some circular holes at described cylinder diverse location, so that passing of kapillary, has good actual application value.Column oven structure described in this utility model is simple, by force functional, effectively can ensure speed and the homogeneity of heat trnasfer.
Accompanying drawing explanation
Fig. 1 is prior art metal heat-conducting structure and chromatographic column installation site schematic diagram.
Fig. 2 is embodiment 1 metal heat-conducting structure and chromatographic column installation site schematic diagram.
Fig. 3 is embodiment 2 metal heat-conducting structure and chromatographic column installation site schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.The utility model embodiment accompanying drawing, only for exemplary illustration, can not be interpreted as restriction of the present utility model.To those skilled in the art, the cylindrical structure in accompanying drawing is replaced with the shapes such as square column type structure and by some known features in accompanying drawing and illustrate that may to omit be understandable.
Embodiment 1
As shown in Figure 2, the utility model provides a kind of conductive structure of column oven, and be the metal hollow pipe 5 of an at least one end opening, described opening is provided with heat-insulating plug.
Described metal hollow pipe 5 can both ends open, and convenient operation, both ends open is equipped with heat-insulating plug.
Described metal hollow pipe 5 can be hollow cylinder, tetragonal prism or polygon post, and size and the chromatographic column of the inner space 8 of described metal hollow pipe are suitable.Described metal hollow pipe is preferably hollow cylinder.It is hollow cylinder shown in the present embodiment accompanying drawing 2.
Further preferably, the internal diameter of described cylinder is 35mm.
Based on conductive structure of the present invention, a kind of column oven being applicable to chromatographic column temperature control is provided, comprise heating arrangement (not indicating in accompanying drawing 2), at least one end opening metal hollow pipe 5 and pipe in space 8, kapillary 6, heat-insulating plug (not indicating in accompanying drawing 2), described kapillary 6 passes from one end of metal hollow pipe 5.Heating arrangement connection metal hollow tubular 5, in the pipe of described metal hollow pipe 5, chromatographic column 4 is placed in space 6; Described heat-insulating plug is used for the opening at jam-pack hollow metal tube two ends.
In the present embodiment, chromatographic column 4 be positioned in cylinder 5, the kapillary 6 be connected with chromatographic column 4 stretches out from one end of cylinder.Chromatographic column in described column oven is in the confined bed thermal environment formed with metal hollow Guan Weizhu, improves heat conduction rate and efficiency, ensure that chromatographic column absorbs the homogeneity of heat, is conducive to the accuracy improving experimental data.
Embodiment 2
As shown in Figure 3, the utility model provides a kind of conductive structure of column oven, and be the metal hollow pipe 5 of an at least one end opening, described opening is provided with heat-insulating plug.
Described metal hollow pipe 5 can both ends open, and convenient operation, both ends open is equipped with heat-insulating plug.
Described metal hollow pipe 5 can be hollow cylinder, tetragonal prism or polygon post, and size and the chromatographic column 4 of the inner space 8 of described metal hollow pipe are suitable.Described metal hollow pipe 5 is preferably hollow cylinder.It is hollow cylinder shown in the present embodiment accompanying drawing 3.
Further preferably, the internal diameter of described cylinder is 35mm.
Described metal hollow pipe 5 is provided with the hole 7 passed for kapillary, described hole 7 and opening are provided with heat-insulating plug.
For improving applicability of the present utility model, 60mm, 110mm, 160mm, 210mm and 260mm of counting from one end of described metal hollow pipe open a hole 71,72,73,74 and 75 respectively, as shown in Figure 3, the applicability of the liquid-phase chromatographic column to different column length is increased with this, go for column length and be respectively 50mm, 100mm, 150mm, 200mm, 250mm and 300mm liquid-phase chromatographic column, so that the passing of kapillary 6.
Described hole is preferably circular hole, and further preferably, the diameter of described circular hole is 35mm.
Based on conductive structure of the present invention, a kind of column oven being applicable to chromatographic column temperature control is provided, comprise heating arrangement (not indicating in accompanying drawing 2), at least one end opening metal hollow pipe 5 and pipe in space 8, kapillary 6, heat-insulating plug (not indicating in accompanying drawing 2), according to the chromatographic column of different column length, described kapillary 6 can pass by the corresponding circular hole set by respectively from metal hollow pipe 5, or passes from one end of metal hollow pipe.Heating arrangement connection metal hollow tubular 5, in the pipe of described metal hollow pipe 5, chromatographic column 4 is placed in space 6; Described heat-insulating plug is used for the opening at jam-pack hollow metal tube two ends.
In the present embodiment, be that the chromatographic column 4 of 150mm is positioned in cylinder 5 by length, the kapillary 6 be connected with chromatographic column 4 passes from the circular hole 73 of 160mm.
Compared to embodiment 1, the present embodiment goes for the chromatographic column of different length, and existing conventional chromatographic column can find corresponding hole easily, realizes passing of kapillary.Chromatographic column in described column oven is in the confined bed thermal environment formed with metal hollow Guan Weizhu, both can realize improving heat conduction rate and efficiency, ensure that chromatographic column absorbs the homogeneity of heat, be conducive to the object of the accuracy improving experimental data, also there is good general applicability.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included in of the present utility model comprising within scope.
Claims (10)
1. be applicable to a conductive structure for chromatographic column temperature control, it is characterized in that, described conductive structure is the metal hollow pipe of an at least one end opening, and described opening is provided with heat-insulating plug.
2. be applicable to the conductive structure of chromatographic column temperature control according to claim 1, it is characterized in that, described metal hollow pipe is arranged porose, described hole is provided with heat-insulating plug.
3. be applicable to the conductive structure of chromatographic column temperature control according to claim 1, it is characterized in that, the length of described metal hollow pipe is 65mm to 315mm.
4. be applicable to the conductive structure of chromatographic column temperature control according to claim 2, it is characterized in that, 60mm, 110mm, 160mm, 210mm and 260mm of counting from one end of described metal hollow pipe open a hole respectively.
5. according to any one of Claims 1-4, be applicable to the conductive structure of chromatographic column temperature control, it is characterized in that, described metal hollow pipe is hollow cylinder.
6. be applicable to the conductive structure of chromatographic column temperature control according to claim 5, it is characterized in that, the internal diameter of described cylinder is 15mm ~ 40mm.
7. be applicable to the conductive structure of chromatographic column temperature control according to claim 6, it is characterized in that, the internal diameter of described cylinder is 35mm.
8. be applicable to the conductive structure of chromatographic column temperature control according to claim 4, it is characterized in that, described hole is circular hole.
9. be applicable to the conductive structure of chromatographic column temperature control according to claim 8, it is characterized in that, the diameter of described circular hole is 3mm.
10. a column oven, comprise heating arrangement, it is characterized in that, also comprise the conductive structure described in any one of claim 1 to 9, in the pipe of the metal hollow pipe of described conductive structure, chromatographic column is placed in space, and the kapillary of described chromatographic column passes from the hole metal hollow pipe or opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520272803.2U CN204719012U (en) | 2015-04-30 | 2015-04-30 | Be applicable to conductive structure and the column oven of chromatographic column temperature control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520272803.2U CN204719012U (en) | 2015-04-30 | 2015-04-30 | Be applicable to conductive structure and the column oven of chromatographic column temperature control |
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| CN204719012U true CN204719012U (en) | 2015-10-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093266A (en) * | 2016-08-16 | 2016-11-09 | 中国科学院西双版纳热带植物园 | The GC EAD system of chromatographic column constant temperature transmission line and composition thereof |
| CN110785659A (en) * | 2017-09-21 | 2020-02-11 | 株式会社岛津制作所 | Column oven |
-
2015
- 2015-04-30 CN CN201520272803.2U patent/CN204719012U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093266A (en) * | 2016-08-16 | 2016-11-09 | 中国科学院西双版纳热带植物园 | The GC EAD system of chromatographic column constant temperature transmission line and composition thereof |
| CN110785659A (en) * | 2017-09-21 | 2020-02-11 | 株式会社岛津制作所 | Column oven |
| CN110785659B (en) * | 2017-09-21 | 2022-11-25 | 株式会社岛津制作所 | Column oven |
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