建立了顶空/气相色谱-质谱法同时测定固体废物浸出液中35种挥发性卤代烃的方法,系统地研究了顶空条件对测定结果的影响,优化了色谱分离条件.结果表明,各挥发性卤代烃可以实现良好的分离;标准曲线相关系数均大于0.99,检出限为0.6-1.4 μg/L,不同浓度的相对标准偏差分别为7.2%-19%,4.3%-15%和4.2%-9.9%,样品加标回收率为71.0%-124%.该方法灵敏度高,具有良好的精密度和准确度,适用于固体废物浸出液中挥发性卤代烃的测定.%The analytical method for simultaneous determination of 35 kinds of volatile halohydrocarbons (VHCs) in solid waste leachate by headspace gas chromatography/mass spectrometry was established. The headspace conditions were discussed systematically,as well as the right separation conditions were determined. The result demonstrated that each volatile halohydrocarbon could actualize good separation. The correlation co-efficients of the calibration curve were greater than 0.99. The detection limits were from 0.6μg/L to 1.4μg/L. The relative standard deviations of different concentration were 7.2%-19%, 4.3%-15%and 4.2%-9.9%respec-tively. The recovery for the sample was in the range of 71.0%to 124%. The method had high sensitivity,good exactitude and accuracy.It was suitable for the determination of VHCs in solid waste leachate.
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