摘要
目的:建立饮用水中7种挥发性卤代烃的自动顶空毛细管柱气相色谱测定方法。方法:样品经85℃顶空平衡30 min后,采用DB-624毛细管色谱柱,电子捕获检测器检测,外标法定量。结果:本法7种挥发性卤代烃的平均加标回收率为94.1%～107.4%,相对标准偏差为1.05%～2.96%,检出限为0.02μg/L～0.10μg/L。结论:本法简便、灵敏、快速、准确,可同时测定生活饮用水中7种挥发性卤代烃。
Objective： To establish a method for determination of 7 volatile halohydrocarbons in drinking water by automated headspace - capillary gas chromatography. Methods： Samples were balanced at 85 ℃ for 30 min, then the headspace gas was determined by gas chromatography with electron capture detector （ECD） using DB - 624 capillary column for separation and quantified with external standard method. Results i The recoveries of the method were in the range of 94.1% -107.4%. The relative standard deviations were between 1.05% and 2.96%. The detection limits were between 0.02 ug/L and 0.10 ug/L. Conclusion ：This method is simple ,accurate ,sensitive and suitable for the analysis of 7 volatile halogenated hydrocarbons in drinking water.
出处
《中国卫生检验杂志》
北大核心
2013年第6期1417-1419,共3页
Chinese Journal of Health Laboratory Technology
基金
江苏省预防医学科研课题(Y201022)
无锡市卫生系统科研项目(ZD1009)
关键词
自动顶空法
毛细管柱气相色谱法
挥发性卤代烃
饮用水
Automated headspace method
Capillary gas chromatography
Volatile halogenated hydrocarbons
Drinking water
