摘要
目的:建立工作场所空气中正己烷、三氯乙烯、四氯乙烯、丙酮、丁酮、乙酸乙酯、乙酸丁酯、苯、甲苯和二甲苯的溶剂解吸气相色谱测定方法。方法:采用活性炭管采集空气样品,二硫化碳解吸,经FFAP毛细管色谱柱分离气相色谱测定方法。结果:本法分离良好,线性相关系数均大于0.999;方法最低检出浓度为0.2 mg/m3～0.9 mg/m3;相对标准偏差为1.2%～2.9%;解吸效率为93.8%～102.8%。结论:该法精密度和准确度高,适用于工作场所空气中这十种有机空气污染物的测定。
Objective：To establish a gas chromatographic method for determination of ten organic toxicants including n-hexane,trichloroethylene,tetrachloroethylene,acetone,2-butanone,ethy1 acetate,butyl acetate,benzene,toluene and xylene in the air of the workplace.Methods： After the air samples collected with activated carbon tubes and desorbed with CS2,the target toxicants were separated with FFAP capillary columns and detected with flame ionization detector.Results： The coefficient of correlation was above 0.999 and the lowest detectable concentrations were 0.2 mg/m3～0.9 mg/m3.with the RSDs of 0.9%～2.1%.The desorption efficiencies were 93.8%～102.8%. Conclusion： The method shows lower detection limit,high accuracy and precision.It is feasible for determination of ten organic toxicants in the air of the workplace.
出处
《中国卫生检验杂志》
CAS
2010年第11期2746-2747,共2页
Chinese Journal of Health Laboratory Technology
