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Networked gas chromatograph

A gas chromatograph and gas separation technology, applied in the field of networked gas chromatographs, can solve the problems of high temperature dependence, discounted detection effect, and poor detection of samples, and achieve the effect of improving automatic adjustment ability

Inactive Publication Date: 2015-04-29
成都瑞芬思德丹生物科技有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] At present, most of the common gas chromatographs are a detection system, which cannot be well detected for complex samples. NPD detection effect is good for nitrogen and phosphorus components in a complex sample, including halogen, sulfur, oxygen, carbonyl and The detection effect of amino components is good with ECD, the detection effect of sulfur and phosphorus-containing components is good with FPD, etc., so that the detection effect will be greatly reduced in one detector.
[0004] In addition, existing gas chromatographs are highly dependent on temperature

Method used

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  • Networked gas chromatograph

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Embodiment Construction

[0023] In a preferred embodiment of the present invention, the networked gas chromatograph includes: multiple separation units, multiple detection units, multiple temperature control circuits, multiple data transmission units, and multiple processing units. Wherein, each of the multiple separation units includes multiple separation columns, but only one separation column is used in a chromatographic detection process. These separation columns are all the same, the purpose is to prolong the life of each separation column and improve the stability of chromatographic detection results, and avoid inaccurate results caused by the aging or defects of the separation column itself when a separation column is often used.

[0024] Multiple detection units are independent of each other, and each detection unit is used to detect the concentration of the components respectively. The detection method is accomplished by relying on an ultraviolet detector or a fluorescence detector according ...

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Abstract

The invention provides a networked gas chromatograph in order to reduce the dependency of a gas chromatograph for temperature-gas. The networked gas chromatograph comprises a plurality of separating units, a plurality of mutually independent detection units, a plurality of mutually independent temperature control units, a plurality of data transmission units and a processing unit. After the networked gas chromatograph is used, the automatic adjustment capability of the gas chromatograph for the detection temperature can be improved, so that the gas chromatograph is promoted to adjust the temperature as soon as possible and obtain the accurate concentration value under the condition that the accurate concentration value is not obtained for the first time.

Description

technical field [0001] The invention relates to the technical field of analytical instruments, more specifically, to a networked gas chromatograph. Background technique [0002] The basic structure of a gas chromatograph has two parts, the analysis unit and the display unit. The former mainly includes gas source and control metering device, sampling device, thermostat and chromatographic column. The latter mainly includes calibrator and automatic recorder. Chromatographic column (including stationary phase) and calibrator are the core components of gas chromatograph. (1) Carrier gas system, the gas path in the gas chromatograph is a closed pipeline system in which the carrier gas runs continuously. The entire carrier gas system requires pure carrier gas, good airtightness, stable flow rate and accurate flow rate measurement. (2) Sampling system. Sampling is to quickly and quantitatively add gas or liquid samples to the upper end of the chromatographic column. (3) Separa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02
Inventor 常建红
Owner 成都瑞芬思德丹生物科技有限公司
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