Volatile organic compound monitoring method and system

An organic compound and monitoring system technology, applied in the field of sensors, can solve problems such as limited scope of application, achieve fast detection speed, easy maintenance, and suitable for large-scale promotion and application

Inactive Publication Date: 2016-06-29
GUANGDONG WEICHUANG TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the purpose of the embodiments of the present invention is to provide a volatile organic compound monitoring method and system to improve the detection of VOCS by gas chromatography in the prior art, which has great limitations and limited scope of application. question

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  • Volatile organic compound monitoring method and system

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Embodiment Construction

[0046] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention generally described and illustrated in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the protection scope of the present invention.

[0047] Th...

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Abstract

The embodiment of the invention provides a volatile organic compound monitoring method and system. The problems that in the prior art, when VOCS are detected through gas chromatography, the great limitation exists, and the application range is limited are solved. The volatile organic compound monitoring method comprises the steps that the to-be-detected gas is sampled to obtain sampled gas, and the sampled gas is pretreated; the pretreated sampled gas is fed into a detection device; qualitative analysis is performed on the pretreated sampled gas through a gas chromatograph in the detection device to obtain qualitative analysis data; quantitative analysis is performed on the pretreated sampled gas through a photoionization detector in the detection device to obtain quantitative analysis data; gas components included in the pretreated sampled gas and the concentrations of all the gas components are calculated by a processor according to the qualitative analysis data and the quantitative analysis data. According to the volatile organic compound monitoring method and system, the monitoring efficiency and reliability can be improved, and application and popularization are easy.

Description

Technical field [0001] The invention relates to the technical field of sensors, and in particular to a method and system for monitoring volatile organic compounds. Background technique [0002] In my country, volatile organic compounds (VOCS) refer to organic compounds with a saturated vapor pressure greater than 70 Pa at normal temperature and a boiling point below 260°C at normal pressure, or those with corresponding volatility at a vapor pressure greater than or equal to 10 Pa at 20°C. All organic compounds. At present, gas chromatography is often used to detect the composition and content of volatile organic compounds. Gas chromatography takes advantage of the small differences in the properties of the VOCS between the different components in the two phases (stationary phase and mobile phase), such as the partition coefficients, and more continuously. The mass exchange is performed between the two phases to obtain separation. The different VOCS components enter the detector i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/74G01N30/20
CPCG01N30/74G01N30/20
Inventor 陈青陈天瑜王贵东李泽彪李锡峰朱润泉谢小晶
Owner GUANGDONG WEICHUANG TECH DEV
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