溶剂解吸气相色谱法测定工作场所空气中甲基丙烯酸甲酯  

A gas chromatography method to determine MMA in the air of workplace with desorption of solvent

作　　者：许艳芬[1] 黄振荣[1] 张耀忠[1] 

机构地区：[1]广东省江门市职业病防治所,广东江门529000

出　　处：《中国卫生检验杂志》2011年第5期1134-1135,共2页Chinese Journal of Health Laboratory Technology

摘　　要：目的:探讨以溶剂解吸气相色谱法测定工作场所中的MMA的方法。方法:以炭管采样,CS2解吸,FFAP填充柱分离,FID检测。结果:MMA溶剂解吸气相法线性范围1μg/ml^573μg/ml,相关系数(r)=0.9997;方法精密度为1.92%~4.03%;最低检出浓度为0.2 mg/m3(以采样体积6 L计);加标回收率在98.2%~108.5%间;解吸效率为83.71%~91.22%;样品在4℃下可以保存6 d的稳定。结论:该方法线性范围宽,灵敏度高、结果可靠,可用于工作场所空气中MMA的检测,样品以碳管采样,可大大为日常监测工作提供便利。Objective：To study the method for the determination of MMA in the air of workplace with solvent desorption by GC.Methods： Collected with charcoal tube,extracted with CS2,separated by FFAP packed column and detected by FID.Results： The linear range of method was 1 μg/ml-573 μg/ml and the correlation coefficient was 0.9997;the relative standard deviation 1.92%-4.03%;the lowest detection concentration was 0.2 mg/m3;the recovery rates 98.2%-108.5%;the desorption rates 83.71%-91.22%;samples could be saved under 4℃ for 6 days.Conclusion： The medthod is wide in linear range,sensitive,and can be used to determine MMA in the air of workplace.Collecting with charcoal tube can greatly convinence daily work.

关 键 词：甲基丙烯酸甲酯 工作场所空气 溶剂解吸 气相色谱 

分 类 号：O657.71[理学—分析化学]