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Temperature control type multipoint implementation chromatogram concentrating method for chromatograph

A chromatographic method and a chromatographic technique, which are applied in the field of concentrated chromatographic generation at multiple points of a chromatograph, can solve problems such as increasing difficulty, and achieve the effects of ensuring efficiency, reducing cost, and being suitable for popularization and use.

Inactive Publication Date: 2007-05-09
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual work, if two or more adjacent chromatographic peaks are concentrated, the temperature control device is required to achieve rapid cooling and heating, which puts higher requirements on the manufacturing technology of the temperature control device. Increased the difficulty in the specific implementation process

Method used

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  • Temperature control type multipoint implementation chromatogram concentrating method for chromatograph
  • Temperature control type multipoint implementation chromatogram concentrating method for chromatograph
  • Temperature control type multipoint implementation chromatogram concentrating method for chromatograph

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Embodiment

[0013] The present invention will be further described below with specific examples.

[0014] Chromatographic operating conditions

[0015] Gas chromatography column: HP-5, 30m×0.32mm×0.25μm

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Abstract

This invention discloses a multi-position condensation color spectrum method of chromatogram device, which belongs to the technique to improve the accuracy of chromatogram device. The method is the following: to set at least two devices with cooling and heating functions at the connection pipeline between the output end of the color spectrum to the input end of the tester. It is characterized by the following: to control each device at different temperature to make each device at low temperature condensation status, high temperature emission status, transition and preparation to the condensation status from high temperature to low temperature or the transition and preparation to the emission status from low temperature to high temperature.

Description

technical field [0001] The invention relates to a method for generating concentrated chromatography at multiple points of a chromatograph. The invention belongs to the technique for improving the detection sensitivity of a chromatograph. Background technique [0002] In the "ZL 99 108747.X" patent, we propose to set a cooling and heating device on the outlet section of the chromatographic column (this section of the chromatographic column can also be called a concentration column). When the broadened sample component flows out of the chromatographic analysis column and enters the concentration column, the capacity factor of the sample component on the concentration column tends to infinity by cooling first, and the sample component is retained and concentrated; after the concentration process is completed, it is heated rapidly The concentration column makes the capacity factor of the sample components on the concentration column tend to zero, and transmits the concentrated ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/54G01N30/26B01D15/08
Inventor 范国梁宋威宋崇林周维义
Owner TIANJIN UNIV
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