毛细管柱顶空气相色谱法测定饮用水中6种挥发性卤代烃

目的:建立饮用水中6种挥发性卤代烃的分析方法。方法:采用顶空气相色谱法,利用毛细管柱测定饮用水中三氯甲烷、四氯化碳、一溴二氯甲烷、二溴一氯甲烷、四氯乙烯和三溴甲烷等6种挥发性卤代烃。结果:在所建立的实验条件下6种挥发性卤代烃的平均回收率为96.2%～100.2%之间,相对标准偏差(RSD)为1.05%～2.98%。结论:所建立的方法简便、快速、准确,可同时测定6种挥发性卤代烃。

Determination of six halohydrocarbons in drinking water with capillary column headspace gas chromatography

Objective:To develop a method to determine the six halohydrocarbons in drinkingwater.Methods: The six halohydrocarbons(chloroform,tetrachloromehtane,bromodichloromethane,dibromochloromethane,tetrachloroentene and bromoform) in drinkingwater were determined by capillary column and headspace gas chromatography.Results: Under the optimal experimental conditions,the recoveries of the six halohydrocarbon were in the range of 96.2%～100.2%,the relative standard deviations were 1.05%～2.98%.Conclusion: The method we developed is rapid,simple and accurate.Using the method,a variety of halohydrocarbons can be determined simultaneously.