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Miniaturized low-temperature chromatograph box

A chromatographic column and capillary chromatographic column technology, which is applied in the direction of instruments, measuring devices, scientific instruments, etc., can solve the problem of not reducing the instrument

Inactive Publication Date: 2006-10-11
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, when detecting volatile organic pollutants in situ in the field in real time, the current conventional chromatographic instruments cannot meet this requirement in terms of size and weight. has become one of the urgent problems to be solved

Method used

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  • Miniaturized low-temperature chromatograph box
  • Miniaturized low-temperature chromatograph box
  • Miniaturized low-temperature chromatograph box

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Embodiment Construction

[0011] The specific implementation of the present invention is realized in the following manner: at the beginning, the cooling water is first connected, and then the DC stabilized power supply is connected, the semiconductor refrigeration module starts to work, and the refrigeration module connected with the refrigeration surface can reach the temperature within 3 minutes. Low temperature of -15°C. After low-temperature separation, use a thin-film heater to heat up the temperature, so as to realize the automatic heating and cooling operation of the chromatography. During the specific implementation process, various performance indexes of the miniature low-temperature chromatographic column box device were repeatedly tested, and the experiments showed that the system has good stability. The separation and determination of methyl tert-butyl ether and its degradation products were carried out by using this device combined with solid-phase microextraction technology. In the exper...

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Abstract

The invention belongs to the field of analysis and testing, and relates to the development of a miniaturized low-temperature chromatographic column box. The feature of this device is that the refrigeration module is made of heat-conducting adhesive solidified at room temperature, and the capillary chromatographic column used for separation is also solidified in the middle of the refrigeration module. Using a 4cm x 4cm x 0.2cm semiconductor element for refrigeration does not require traditional liquid nitrogen or liquid carbon dioxide refrigerants. The entire column box has a volume of only 6cm×6cm×2.5cm, which is simple and convenient, and has low manufacturing cost.

Description

technical field [0001] The invention belongs to the field of analysis and testing, and relates to the development of a miniaturized low-temperature chromatographic column box. The feature of this device is that the refrigeration module is made of heat-conducting adhesive cured at room temperature, and the capillary chromatographic column used for separation is solidified in the middle of the refrigeration module. Utilizes a 4 cm x 4 cm x 0.2 cm semiconductor element to refrigerate, without the need for traditional liquid nitrogen or liquid carbon dioxide refrigerants. The entire column box has a volume of only 6 cm x 6 cm x 2.5 cm, which is simple and convenient, and has low manufacturing cost. Background technique [0002] The background and development status of this technical field are roughly as follows: [0003] The development of low temperature chromatographic separation technology has become one of the ways to solve the separation of volatile or...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/60
Inventor 江桂斌刘杰民
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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