热脱附-ECD气相色谱法测定室内空气中的五种氯苯类化合物  

Determination of 5 Chlorobenzenes indoor air by ECD gas chromatography with Secondary thermal desorption

作　　者：丁宇[1] 周睿[1] 劳宝法[1] 

机构地区：[1]上海市卢湾区疾病预防控制中心,上海200023

出　　处：《中国卫生检验杂志》2011年第1期21-22,25,共3页Chinese Journal of Health Laboratory Technology

摘　　要：目的：建立用热脱附气相色谱分析方法分析室内空气中5种氯苯类化合物的方法。方法：在合适的仪器条件下,将吸附管置于全自动热解吸仪中直接加热解吸,各待测组分随载气进入毛细管气相色谱仪分离,ECD检测器检测。结果：样品中的各类化合物都能得到较好的分离,相关系数r在0.9942~0.9989之间,RSD为7.4%~10.4%,各组分的解吸效率为90.41%~99.68%。结论：该方法适合痕量氯苯类化合物的测定。Objective：To establish the method to determinate five Chlorobenzenes in air by gas chromatography with Secondary thermal desorption.Methods： Under the conditions of the appropriate instruments,the component were separated by the gas chromatography and detected by ECD.Results： Five Chlorobenzenes were separated well,coefficients were between 0.9942 and 0.9989,and linear was good;the value of RSD were 7.4%~10.4%,the efficiencies of thermal desorption were from 90.41% to 99.68%.Conclusion： This method can be used to trace chromatography in environment.

关 键 词：热脱附 ECD 气相色谱 室内空气 氯苯类化合物 

分 类 号：O657.71[理学—分析化学]