Title: Improved Determination Method of Benzene Analogues by Gas Chromatography
Abstract: The conventional determination method of benzene analogues by gas chromatography was improved.Air samples were trapped and purged through quartz column and valve successively.The condensed samples were then purged in gas chromatograph.The method shortens the injection process and improves recovery of target compounds.The results showed that recoveries of benzene,toluene,ortho-xylene and para-xylene were 102.9%~103.6%,96.5%~97.2%,93.2%~94.2% and 91.2%~91.6%,respectively.The relative standards were 0.94%,0.61%,0.55% and 0.65%,respectively.
Publication Year: 2005
Publication Date: 2005-01-01
Language: en
Type: article
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