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Multi-channel miniature gas chromatographic column chip and preparation method

A micro-gas chromatography and multi-channel technology, which is applied in the field of multi-channel micro-gas chromatography column chip and preparation, to achieve fast and efficient separation, low power consumption, small volume and small thermal melting effect

Active Publication Date: 2021-10-29
AEROSPACE INFORMATION RES INST CAS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, in order to solve the application requirements of fast and efficient separation of complex background gases and high-precision detection of complex environmental pollution gases, the present disclosure provides a multi-channel micro gas chromatography column chip and a preparation method to solve at least one of the above technical problems

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  • Multi-channel miniature gas chromatographic column chip and preparation method
  • Multi-channel miniature gas chromatographic column chip and preparation method

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preparation example Construction

[0029] The disclosure provides a multi-channel miniature gas chromatography column chip and a preparation method. In one aspect, a multi-channel miniature gas chromatography column chip provided by the present disclosure includes:

[0030] At least two independent and parallel chromatographic channels are filled with different stationary phases.

[0031] The gas branching channel is arranged between two adjacent chromatographic channels and communicates with the other side of the chromatographic channels, and is used to divide the gas to be separated into multiple channels and pass them into each chromatographic channel respectively.

[0032] According to an embodiment of the present disclosure, the multi-channel micro gas chromatography column chip also includes:

[0033] At least one solenoid valve, arranged on one side of each chromatographic channel, is used to control one of the chromatographic channels to be in a working state;

[0034] The gas outflow channel is conne...

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Abstract

The invention provides a multi-channel miniature gas chromatographic column chip and a preparation method. The multi-channel miniature gas chromatographic column chip comprises at least two mutually independent and parallel chromatographic channels andgas branching channels, wherein the chromatographic channels are filled with different stationary phases; and the gas branching channels are arranged between two adjacent chromatographic channels, are communicated with the other sides of the chromatographic channels, and are used for dividing the gas to be separated into multiple paths and respectively introducing the multiple paths into each chromatographic channel. The miniature gas chromatographic column chip which is small in size, low in power consumption and multi-channel and designed according to the scheme of the invention can realize rapid and efficient separation of environmental pollution gas.

Description

technical field [0001] The disclosure relates to the technical field of gas separation, in particular to a multi-channel miniature gas chromatography column chip and a preparation method. Background technique [0002] High-precision monitoring of environmental toxic gases and accurate monitoring of components in pollution sources are the key to traceability of pollution sources. However, most of the existing sensors do not have anti-interference ability, so when detecting, they often cause detection due to cross-interference. The result is large deviation or even error. In order to solve this technical bottleneck and realize on-site high-precision detection of environmentally toxic gases, it is often necessary to combine chromatographic technology and use the separation ability of chromatography to separate mixed polluting gases, so as to solve the technical bottleneck of poor detector resolution. [0003] However, due to the limitation of the principle of similar miscibili...

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Application Information

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IPC IPC(8): G01N30/60
CPCG01N30/6052G01N30/6095
Inventor 孙建海陈婷婷马天军薛宁蔡浩原赵佩月
Owner AEROSPACE INFORMATION RES INST CAS
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