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2004•Journal of Zhejiang Wanli UniversityRequires access

Determination of Total Volatile Organic Compounds in Indoor Air by Thermal Desorption-Gas Chromatography Method

Zhu Jing-bo

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Abstract

A method of automated thermal desorption in combination with Gas Chromatography was evaluated for determination of 8 kinds of volatile organic compounds (VOC) in indoor air. Using tenax-TA sorbent tube collecting and TJ-618 thermal desorption, the efficiency of thermal desorption (N=6) was between 97.8% and 99.7%. Relative standard deviation (n=10) was lower than 8.50% for indoor air samples (VOC). The minimum detectable limit is 0.5 ug/m3.

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What this paper is about

A method of automated thermal desorption in combination with Gas Chromatography was evaluated for determination of 8 kinds of volatile organic compounds (VOC) in indoor air. Using tenax-TA sorbent tube collecting and TJ-618 thermal desorption, the efficiency of thermal desorption (N=6) was between 97.8% and 99.7%. Relative standard deviation (n=10) was lower than 8.50% for indoor air samples (VOC). The minimum detectable limit is 0.5 ug/m3.

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Available abstract

A method of automated thermal desorption in combination with Gas Chromatography was evaluated for determination of 8 kinds of volatile organic compounds (VOC) in indoor air. Using tenax-TA sorbent tube collecting and TJ-618 thermal desorption, the efficiency of thermal desorption (N=6) was between 97.8% and 99.7%. Relative standard deviation (n=10) was lower than 8.50% for indoor air samples (VOC). The minimum detectable limit is 0.5 ug/m3.

Key concepts: Tenax, Thermal desorption, Sorbent, Gas chromatography, Desorption, Chromatography, Relative standard deviation, Chemistry

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