摘要
〔目的〕探讨用Carbotrap3 0 0型采样管采集分析室内空气中 19种卤代烃的线性和精密度。〔方法〕用Carbo trap3 0 0型采样管采集室内空气中的挥发性有机物 ,用热解吸 /气质联用法进行分析。〔结果〕在吸附量为 5 -4 0ng的范围内 ,19种卤代烃线性回归的相关系数为 0 .994-1.0 0 0。 3 -氯 -1-丙烯、二氯甲烷和 1,1-二氯乙烷的采样管DP合格率为 2 8.6% -5 7.1% ,其他 16种卤代烃为 71.4% -10 0 %。 3 -氯 -1-丙烯、二氯甲烷、1,1-二氯乙烷、1,1,1-三氯乙烷和四氯化碳的采样管DVP合格率为 0 % -5 7.1% ,其他 14种化合物为 71.4% -10 0 %。〔结论〕以EPA的评价标准衡量 ,Carbotrap3 0 0型采样管适合于采集分析室内空气中氯仿、1,2 -二氯乙烷、1,1,2 -三氯乙烷、1,1,2 ,2 -四氯乙烷、三氯乙烯、四氯乙烯、1,2 -二氯丙烷、1,3 -二氯丙烷、1,2 -二溴乙烷、氯苯、邻二氯苯、间二氯苯、对二氯苯、1,2 ,4-三氯苯等 14种卤代烃。
Objective To discuss the analytical linearity and precision for 19 halohydrocarbons in indoor air using sampling tube Carbotrap300.〔Method〕 The air samples were collected with Carbotrap300 tubes and measured by desorption and GC/MS method.〔Result〕 The relative coefficients were in the range of 0.994 to 1.000 for the compounds when the injection mass into the sorbent tubes was between 5ng and 40ng.The tube DP pass ratio values were 28.6% to 57.1% for 3-chloro-1-propene,methylene chloride and 1,1-dichloroethane, and 71.4% to 100% for the others.And the tube DVP pass ratio values were between 0% and 57.1% for 3-chloro-1-propene, methylene chloride,1,1-dichloroethane,1,1,1-trichloroethane and carbon tetrachloride, and 71.4% to 100% for the other 14 halohydrocarbons. 〔Conclusion〕 On the basis of criteria for American EPA method of TO-17, the multisorbent sampling tube Carbotrap300 is suitable for collecting and testing chloroform, 1,2-dichloroethane, 1,1,2-trichloroethane, 1,1,2,2-tetrachloroethane, trichloroethylene, tetrachloroethylene, 1,2-dichloropropane, 1,3-dichloroopropane, 1,2-dibromoethane, chlorobenzene, 1,2-dichlorobenzene, 1,3-dichlorobenzene, 1,4-dichlorobenzene and 1,2,4-trichlorobenzene in indoor air.
出处
《中国卫生检验杂志》
CAS
2003年第6期705-707,共3页
Chinese Journal of Health Laboratory Technology
