空气中正戊烷、正己烷和正庚烷的测定方法  

Determination of n-pentane、n-hexane and n-heptane in air

作　　者：傅胜[1] 闫慧芳[2] 

机构地区：[1]湖南省劳动卫生职业病防治所,湖南长沙410007 [2]中国疾病预防控制中心职业卫生与中毒控制所,北京100050

出　　处：《中国工业医学杂志》2007年第3期161-162,共2页Chinese Journal of Industrial Medicine

摘　　要：目的建立工作场所空气中正戊烷、正己烷和正庚烷气相色谱测定标准方法。方法活性炭管采样、溶剂解吸后,用毛细管色谱柱进行分离测定。结果活性炭管穿透容量〉10 mg,解吸效率〉99%,方法相对标准偏差（RSD）为1.8%~4.2%,检出限0.2μg/ml。结论本方法选择性好,准确度和精密度高,适用性强。Objective To establish a standard gas chromatographic method for detemainating n-pentane, n-hexane and n-heptane in air of workplace. Method Separating and measuring with capillary GC column after activated carbon tube samphng and solvent desorption. Result The penetrant capacity of activated carbon tube was more than 10 mg, the desorption efficiency was more than 99%, the relative standard deviation （RSD） varied from 1.8% ~ 4.2%, the detection limit was 0.2 μg/ml. Conclusion The method shows good selectivity, accuracy, precision, and high adaptivity.

关 键 词：空气 正戊烷 正己烷 正庚烷 气相色谱法 

分 类 号：R122.11[医药卫生—环境卫生学]