作业场所空气中四氯乙烯气相色谱检测方法的建立与应用  

ESTABLISHMENT AND APPLICATION OF GAS CHROMATOGRAPHY METHOD FOR DETERMINATION OF TETRACHLOROETHYLENE IN WORKPLACE AIR

作　　者：廖青[1] 梅玉琴 

机构地区：[1]四川省自贡市疾病预防控制中心,自贡643000

出　　处：《现代预防医学》2009年第12期2346-2347,共2页Modern Preventive Medicine

摘　　要：[目的]建立作业场所空气中四氯乙烯的检测方法。[方法]选用活性炭管采集,二硫化碳解吸,FFAP色谱柱分离,气相色谱氢火焰检测器检测。[结果]优化色谱条件下,可将四氯乙烯与多种共存干扰物分离。四氯乙烯浓度在0～772.3μg/ml范围内呈线性关系,相关系数为0.9998,方法检出限为1.3μg/ml,最低检出浓度为0.9mg/m3(以采集1.5L空气样品计)。方法的相对标准偏差为1.9%～4.5%,平均解吸效率为96%,样品于室温下可保存7d。[结论]该方法可简便,快速,准确地测定作业场所空气中四氯乙烯的浓度。[ Objective ] To establish a gas chromatography method for determination of tetrachloroethylene in workplace air. [ Methods] Tetrachloroethylene in air was collected by activated carbon, desorbed with carbon bisulfide, separated by FFAP chromatography column, and detected by flame ionization detector. [ Results] Under optimum condition, tetrachloroethylene could be separated with several coexistent interference. The linear range was at the range of 0-772.3μg/ml. correlation coefficient was 0.999 8, detemination limit was 1.3μ g/ml. concentration limit was 0.9mg/m^3 （ 1.5 L air was collected）, RSD was 1.9%-4.5%, and average desorption efficiency was 96%. The sample could be preserved in 7 days. [Conclusion] The method can be simple, fast and accurate to detect tetrachloroethylene contents in workplace air.

关 键 词：气相色谱 四氯乙烯 作业场所空气 

分 类 号：R184.1[医药卫生—流行病学]