毛细管柱气相色谱法快速测定工作场所空气中芳香烃类化合物  

Determination of aromatic hydrocarbons in workplace air by rapid capillary gas chromatography

作　　者：陶雪[1] 宋景平 

机构地区：[1]中国疾病预防控制中心职业卫生与中毒控制所,北京100050 [2]北京市预防医学研究中心,北京100020

出　　处：《中国卫生检验杂志》2009年第6期1256-1258,共3页Chinese Journal of Health Laboratory Technology

摘　　要：目的：建立工作场所空气中芳香烃类化合物的快速测定方法。方法：依据车间空气中有毒物质测定研究规范,采用毛细管柱气相色谱法快速测定作业场所空气中芳香烃类化合物。结果：作业场所空气中的芳香烃类化合物在选定的实验条件下,可同时测定;相对标准偏差0.84%～2.4%;最低检出限分别为0.017～0.024μg/m l;线性关系良好,相关系数大于0.9998,除苯乙烯外其他几种化合物的解吸效率均大于95%;样品可在室温下保存7 d。结论：本方法选择20m×0.18 mm×1μm DB-VRX毛细管柱,用气相色谱分析芳香烃类化合物,分析时间短,适合于苯等多种化合物共存复杂样品的分析测定,且简便快捷,易于推广。Objective：A rapid capillary column GC method was developed to determinate aromatic hydrocarbons in the air of workplace. Methods：The workplace air was collected by active carbon tube, extracted with carbon disulphide, separated by 20 m ×0. 18 mm × 1 μm DB - VRX capillary column and determinated by GC. Results：The precision was 0. 81% -2.4% ,the limits of detection 0 017 -0. 024 μg/ml and the correlation coefficient 0. 9998 - 1. 000. The desorbed efficiency exceeded 95% except styrene. The samples were stored at ambient for at least 7 days. Conclusion：The method is sensitive, accurate and rapid. It is applicable to workplace air aromatic hydrocarbons measurement.

关 键 词：芳香烃类化合物 快速测定 气相色谱 

分 类 号：O657.71[理学—分析化学]