气相色谱法应急监测空气中甲基丙烯酸甲酯

摘要

Aromatic methyl methacrylate in air was collected with a portable air sampler and adsorbed on charcoal. After desorbed with carbon disulfide, the sample was determined by gas chromatography with flame ionization detector. The average recovery was 93. 9% , and RSD was<3%. The method is easy to operate and rapid, and is saitable to be used for emergency monitoring of methyl methacrylate content in air of environment and workplace.%建立了空气中甲基丙烯酸甲酯的气相色谱应急监测方法.利用便携式大气采样器采集空气中气态甲基丙烯酸甲酯,活性炭吸附,经二硫化碳溶剂解析后,用气相色谱法分离测定,检测器为氢火焰离子化检测器(FID).本方法操作方便快捷,平均回收率＞93.9%,相对标准偏差＜3%.该方法适合环境空气及工作场所空气中甲基丙烯酸甲酯浓度的应急监测.