气相色谱法测定环境空气中的微量乙酸  

Determination of Trace Acetic Acid in Ambient Air by GC

作　　者：陈冰 肖珊美[2] 温正如[2] 刁银军[2] 

机构地区：[1]浙江第三地质大队测试中心,浙江省金华市321000 [2]金华职业技术学院制药与材料工程学院,浙江省金华市321017

出　　处：《光谱实验室》2012年第2期1249-1252,共4页Chinese Journal of Spectroscopy Laboratory

基　　金：浙江省分析测试基金(2009F70013);金华职业技术学院科技(2011S015)

摘　　要：以填充多孔聚合物聚苯乙烯的吸附采样管吸附环境空气中的微量乙酸,样品经自动热脱附仪解吸,用强极性的色谱柱分离,氢火焰离子化检测器检测,方法最低检出浓度为0.10mg/m3,相对标准偏差在5%以下,加标回收率在86.2%—105.2%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,实际测定结果满意。The trace acetic acid in ambient air was adsorbed by sorbent sampling tube with padding of porous polymer polystyrene,and the samples desorbed through automated thermal desorber,then was separated by strong polarity chromatographic column,and was detected by flame ionization ditector.The minimum detection concentration of the method was 0.10mg/m3,RSDs were less than 5%,and recoveries were in the range of 86.2%—105.2%.The method is simple and fast,and can be applied to monitoring the trace acetic acid in ambient air with the actual-satisfied determination results.

关 键 词：气相色谱法 环境空气 乙酸 

分 类 号：O657.71[理学—分析化学]