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Gas chromatographic column oven with low temperature overcharge

A gas chromatographic column and chromatographic column technology are applied in the field of gas chromatographic column ovens, which can solve the problems of keeping the temperature of difficult mobile phases consistent, affecting the separation balance of components, and high requirements for mobile phase temperature control, and achieving long service life and power consumption. Low, small size effect

Inactive Publication Date: 2019-05-03
苏州赛普睿特仪器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The temperature of the chromatographic column and the mobile phase affects the separation balance of the components. The requirements for the temperature control of the mobile phase are relatively high. Even if the air conditioner is used throughout the room, it is difficult to ensure that the temperature of the mobile phase remains consistent.

Method used

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  • Gas chromatographic column oven with low temperature overcharge
  • Gas chromatographic column oven with low temperature overcharge

Examples

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

[0023] refer to figure 1 As shown, an embodiment of the gas chromatography column oven with small temperature overfill of the present invention includes a box body and a chromatographic column 210 fixedly arranged in the box body.

[0024] The box body is composed of an upper cover 110 and a lower cover 120 that are mated with each other, wherein the upper cover 110 and the lower cover 120 are fixed together by screws at the four corners, and the upper cover 110 and the lower cover 120 are densely covered with A plurality of cooling holes 111 . The upper cover 110 and the lower cover 120 are preferably made of metal material, which is good for heat dissipation. In order to furth...

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Abstract

The invention discloses a gas chromatographic column oven with low temperature overcharge. The gas chromatographic column oven comprises an over body and a chromatographic column fixedly arranged in the over body. A chromatographic column inlet and a chromatographic column outlet through which the two ends of the chromatographic column pass are formed in the sides of the over body. The middle partof the chromatographic column is wound into a shape like a coil pipe; and a platinum resistance wire having the surface processed by insulation winds around the surface of the chromatographic columnin the coil pipe shape tightly and spirally. Besides, a temperature measuring circuit is arranged in the over body; and the platinum resistance wire is connected with the temperature measuring circuitelectrically. The platinum resistance wire is used for heating the chromatographic column and also serves as a temperature sensor to measure the heating temperature. The gas chromatographic column oven has advantages of small size, low temperature overcharge, and prolonged service life.

Description

technical field [0001] The invention relates to the technical field of gas chromatographic column thermostats, in particular to a gas chromatographic column thermostat with small temperature overfill. Background technique [0002] The separation principle of chromatography is that when the components dissolved in the mobile phase pass through the stationary phase, due to the different size and strength of the interaction with the stationary phase, the residence time in the stationary phase is different, and thus the separation process flows out of the stationary phase successively. , which is essentially an equilibrium process of adsorption and desorption. The temperature of the chromatographic column and the mobile phase affects the separation balance of the components. The requirements for the temperature control of the mobile phase are relatively high. Even if the air conditioner is used throughout the room, it is difficult to ensure that the temperature of the mobile pha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/54G01N30/60
Inventor 邹向宇许峰韩宁
Owner 苏州赛普睿特仪器有限公司
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