CN202794124U - Ion chromatograph column heater - Google Patents
Ion chromatograph column heater Download PDFInfo
- Publication number
- CN202794124U CN202794124U CN 201220370038 CN201220370038U CN202794124U CN 202794124 U CN202794124 U CN 202794124U CN 201220370038 CN201220370038 CN 201220370038 CN 201220370038 U CN201220370038 U CN 201220370038U CN 202794124 U CN202794124 U CN 202794124U
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- CN
- China
- Prior art keywords
- temperature
- column
- chromatographic column
- leacheate
- calandria
- 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 - Lifetime
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Abstract
The utility model discloses an ion chromatograph column heater which comprises a column heater body and a column heater cover. The column heater body is internally provided with a chromatographic column card and a chromatographic column; a leacheate inlet is formed in the column heater body; a chromatographic column leacheate inlet and a chromatographic column leacheate outlet are formed in the chromatographic column; the column heater is further internally provided with a temperature pretreatment module; the temperature pretreatment module comprises a heating member and a temperature pretreatment pipe; the temperature pretreatment pipe is positioned inside the heating member; and one end of the temperature pretreatment pipe is connected with the leacheate inlet and the other end of the temperature pretreatment pipe is connected with the chromatographic column leacheate inlet. High heat transfer efficiency can be obtained by adopting a metal heating shell so that quick heating to the temperature pretreatment pipe can be realized; the temperature of the leacheate is ensured to be the same as that of the chromatographic column in the temperature pretreatment pipe, so that the problems of baseline drift, retention time variation and the like caused by disagreement of environmental temperature and chromatographic column temperature are avoided and the accuracy of analysis is ensured.
Description
Technical field
The utility model relates generally to the chromatograph field, is specifically related to a kind of ion chromatograph column oven with leacheate temperature preprocessing function.
Background technology
When adopting electricity to lead detecting pattern, temperature is larger on the ion chromatography impact, 1 ℃ of the every variation of typical temperature, and electrical conductivity of solution changes near 2%, so can find out that the impact that environment temperature brings testing result is very huge.Along with development and the lifting of ion chromatography, polytype chromatographic column is developed and is applied in the analysis of chromatography of ions.Because the difference of the synthesis technique of every kind of chromatographic column, determined that every kind of chromatographic column has proposed specific requirement to environment temperature, under desirable environment, carry out work if can not guarantee chromatographic column, chromatographic column will occur and press the problems such as too high, that separation is undesirable, the more serious life-span that will affect chromatographic column, so column oven is the very necessary configuration when analyzing of Modern Ion Chromatography instrument.
The utility model content
Technical problem to be solved in the utility model provides and a kind ofly can realize temperature and the chromatographic column self-temperature conforming ion chromatograph column oven of leacheate before entering chromatographic column, adopt the METAL HEATING PROCESS shell can obtain high heat transfer efficiency, thereby can realize the Fast Heating to the temperature pretreated tube, guaranteed that leacheate obtains the temperature same with chromatographic column in the temperature pretreated tube, thereby eliminated the problems such as baseline wander that environment temperature and chromatogram column temperature cause when inconsistent and retention time variation, guaranteed the accuracy of analyzing.
For overcoming the above problems, the technical solution adopted in the utility model is:
A kind of ion chromatograph column oven, include column temperature casing, column temperature case lid, be provided with chromatographic column card, chromatographic column in the described column temperature casing, the column temperature casing is provided with the leacheate entrance, chromatographic column is provided with chromatographic column leacheate entrance, the outlet of chromatographic column leacheate, it is characterized in that: described column oven inside also is provided with the temperature pretreatment module, described temperature pretreatment module includes calandria, temperature pretreated tube, the temperature pretreated tube is positioned at calandria, one end of temperature pretreated tube is connected with the leacheate entrance, and the other end is connected with chromatographic column leacheate entrance.
The material that described calandria adopts is the hot conductive can of copper or aluminum.
Described temperature pretreated tube places calandria in the shape of a spiral, and the two ends of temperature pretreated tube are stretched into and stretched out from the same end of calandria.
The material of described temperature pretreated tube is the PEEK material, and its internal diameter is 0.25mm, and length is 50-100cm.
The utility model has the advantages that:
The utility model adopts the METAL HEATING PROCESS shell can obtain high heat transfer efficiency, thereby can realize the Fast Heating to the temperature pretreated tube, guaranteed that leacheate obtains the temperature same with chromatographic column in the temperature pretreated tube, thereby eliminated the problems such as baseline wander that environment temperature and chromatogram column temperature cause when inconsistent and retention time variation, guaranteed the accuracy of analyzing.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the synoptic diagram of constant temperature case lid of the present utility model.
Embodiment is:
Such as Fig. 1, shown in 2, a kind of ion chromatograph column oven, include column temperature casing 1, column temperature case lid 5, be provided with chromatographic column card 4 in the column temperature casing 1, chromatographic column 10, column temperature casing 1 is provided with leacheate entrance 6, chromatographic column 10 is provided with chromatographic column leacheate entrance 8, chromatographic column leacheate outlet 9, column temperature casing 1 inside also is provided with temperature pretreatment module 3, temperature pretreatment module 3 includes calandria 2, temperature pretreated tube 7, temperature pretreated tube 7 is positioned at calandria 2, one end of temperature pretreated tube 7 is connected with leacheate entrance 6, and the other end is connected with chromatographic column leacheate entrance 8.
The material that calandria 2 adopts is the hot conductive can of copper or aluminum.
Temperature pretreated tube 7 places calandria 2 in the shape of a spiral, and the two ends of temperature pretreated tube 7 are stretched into and stretched out from the same end of calandria 2.
The material of temperature pretreated tube 7 is the PEEK material, and its internal diameter is 0.25mm, and length is 70cm.
Leacheate is entered by leacheate entrance 6, and the temperature pretreated tube 7 in excess temperature pretreatment module 3 has realized Fast Heating, obtained the temperature same with chromatographic column 10 temperature, by chromatographic column leacheate entrance 8, enter chromatographic column 10, flow out from chromatographic column leacheate outlet 9 at last.
Claims (4)
1. ion chromatograph column oven, include the column temperature casing, the column temperature case lid, be provided with the chromatographic column card in the described column temperature casing, chromatographic column, the column temperature casing is provided with the leacheate entrance, chromatographic column is provided with chromatographic column leacheate entrance, the outlet of chromatographic column leacheate, it is characterized in that: described column temperature box house also is provided with the temperature pretreatment module, described temperature pretreatment module includes calandria, the temperature pretreated tube, the temperature pretreated tube is positioned at calandria, one end of temperature pretreated tube is connected with the leacheate entrance, and the other end is connected with chromatographic column leacheate entrance.
2. ion chromatograph column oven according to claim 1 is characterized in that: the material that described calandria adopts is the hot conductive can of copper or aluminum.
3. ion chromatograph column oven according to claim 1 and 2, it is characterized in that: described temperature pretreated tube places calandria in the shape of a spiral, and the two ends of temperature pretreated tube are stretched into and are stretched out from the same end of calandria.
4. ion chromatograph column oven according to claim 1, it is characterized in that: the material of described temperature pretreated tube is the PEEK material, and its internal diameter is 0.25mm, and length is 50-100cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220370038 CN202794124U (en) | 2012-07-29 | 2012-07-29 | Ion chromatograph column heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220370038 CN202794124U (en) | 2012-07-29 | 2012-07-29 | Ion chromatograph column heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202794124U true CN202794124U (en) | 2013-03-13 |
Family
ID=47821368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220370038 Expired - Lifetime CN202794124U (en) | 2012-07-29 | 2012-07-29 | Ion chromatograph column heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202794124U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226364A (en) * | 2016-12-09 | 2018-06-29 | 中国科学院大连化学物理研究所 | The constant temperature system and operating method of a kind of liquid chromatogram |
-
2012
- 2012-07-29 CN CN 201220370038 patent/CN202794124U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226364A (en) * | 2016-12-09 | 2018-06-29 | 中国科学院大连化学物理研究所 | The constant temperature system and operating method of a kind of liquid chromatogram |
| CN108226364B (en) * | 2016-12-09 | 2020-08-11 | 中国科学院大连化学物理研究所 | Constant temperature system of liquid chromatogram |
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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 |
Granted publication date: 20130313 |
|
| CX01 | Expiry of patent term |