二次热解吸毛细管气相色谱法同时测定装修居室内空气中31种挥发性有机化合物  

Simultaneous determination of 31 volatile organic compounds in decorated rooms by two-stage thermal desorption-capillary gas chromatography

作　　者：董小艳[1] 常君瑞[1] 李韵谱[1] 王秦[1] 王桂芳[1] 唐志刚[1] 徐东群[1] 

机构地区：[1]中国疾病预防控制中心环境与健康相关产品安全所,北京100021

出　　处：《卫生研究》2011年第1期115-119,共5页Journal of Hygiene Research

基　　金：科技部社会公益基金项目(No.2002DIA10007);中国疾病预防控制中心环境与健康相关产品安全所中青年基金资助项目

摘　　要：目的建立二次热解吸毛细管气相色谱同时测定装修居室内空气中31种挥发性有机化合物的方法。方法采用Tenax TA吸附管采样,二次热解吸毛细管色谱柱分离,FID检测器检测。结果 31种有机化合物在色谱柱可实现良好的分离;各化合物的重现性实验显示RSD均在10%以内;回归方程的相关系数均大于0.99;最低检出限可达1ng/μl的浓度水平;回收率为83.2%～106%。结论该方法适合同时检测装修居室内空气中31种挥发性有机化合物。Objective To establish the monitoring method to simultaneously measure 31 volatile organic compounds in decorated rooms using two-stage thermal desorption-capillary gas chromatography.Methods Using the Tenax TA absorption tube to sample,and subsequently desorbed and analyzed by two-stage thermal desorption capillary gas chromatography column,and measured by FID detector.Results 31 volatile organic compounds can be well separated in the chromatography column.In the experiment,the relative standard deviations of the re-occuring of each compound were within 10%.All the correlation coefficients of linear regression equation were greater than 0.99.The lowest detection limit can reach the concentration level of 1ng /μl,and the recoveries were 83.2%-106%.Conclusion The method is applicable to determination of 31 volatile organic compounds in the decorated rooms simultaneously.

关 键 词：室内装修 室内空气 挥发性有机化合物 二次热解吸 毛细管气相色谱法 

分 类 号：R994.6[医药卫生—毒理学] R122.1[医药卫生—药学]