热脱附-气相色谱法测定环境空气中的微量乙酸  

Determination of Acetic Acid in Ambient Air By Gas Chromatography Coupled Automated Thermal Desorber

作　　者：肖珊美[1] 何桂英 杨晓东[1] 

机构地区：[1]金华职业技术学院,浙江金华321007 [2]宁波市北仑区环境保护监测站,浙江宁波315800

出　　处：《浙江化工》2006年第8期25-26,共2页Zhejiang Chemical Industry

基　　金：浙江省分析测试基金资助项目(04057);金华职业技术学院校级科研基金资助项目(20041130)

摘　　要：以Chromosorb106吸附管吸附环境空气中的微量乙酸,样品经自动热脱附仪解吸,用HP-20M色谱柱分离,氢火焰离子化检测器检测,方法最低检出浓度为0.10mg/m3,相对标准差为5%以下,加标回收率在86～105%之间。方法操作简便、快速,适用于环境空气中微量乙酸的监测。Sampling with the sorbent tube of Chromosorb106, and then desorbing with automated thermal desorber, sample would be separated by HP-20M column and analyzed by gas chromatography. Using the sorbent concentration method,the lowest detection limit of acetic acid was 0.10mg/m^3 .RSD was found to be below 5%, recovery found for acetic acid was in the range of 86%～105%.The method is convient ,fast and has applied to determination of acetic acid in ambient air.

关 键 词：热脱附-气相色谱法 环境空气 乙酸 

分 类 号：X831[环境科学与工程—环境工程]