工作场所空气中正丁基硫醇的测定方法研究  

Research on method for determination of n-butyl mercaptan in air of workplace

作　　者：杨宪辉[1] 林小葵[1] 范衍琼[2] 李玉萍[1] 冯婉丽[1] 

机构地区：[1]广东省江门市新会区疾病预防控制中心,广东江门529100 [2]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》2010年第5期1038-1039,共2页Chinese Journal of Health Laboratory Technology

摘　　要：目的:建立工作场所空气中正丁基硫醇气相色谱测定方法。方法:选用Tenax采样管采集空气中正丁基硫醇,丙酮解吸后毛细管气相色谱(FPD)测定。结果:工作场所空气中正丁基硫醇浓度在0μg/ml～80μg/ml(以采集1.5 L空气样品计)时,线性关系良好,回归方程Y=1.462X+0.391,r=0.9996(n=6),检出限为0.46μg/ml,相对标准偏差在2.3%～4.1%间;平均解吸效率92.1%;穿透容量(200 mg Tenax吸附剂)>100μg;方法的采样效率为96.2%～100%;样品在-10℃冰箱可保存7 d。结论:本方法适用于工作场所空气中正丁基硫醇浓度的测定。Objective：To establish absorbing solution sampling and GC analytical method for detection of n-butyl mercaptan in the air of workplace.Methods：N-butyl mercaptan in the air of workplace was absorbed by Tenax tube and desorbed by acetone,then analyzed by GC（FPD）.Results：The liner regression formula was Y=1.462X＋0.391 between 0 μg/ml～80 μg/ml,r=0.9996.The detection limit was 0.46 μg/ml.The relative standard deviation was 2.3%～4.1%.The sampling efficiency was 96.2%～100%.The sampling tightly closed could be stored for 7 at-10℃ and its results still remain stable.Conclusion：The method is compatible with concentration detection of n-butyl mercaptan in the air of workplace.

关 键 词：正丁基硫醇 工作场所空气 气相色谱法 

分 类 号：O657.71[理学—分析化学]