摘要
目的:建立同时测定水中12种卤代烃的顶空气相色谱法。方法:水中微量卤代烃经顶空气液分配后,用HP-5毛细管柱进行分离,对水浴平衡温度和平衡时间影响因素进行研究和优化。结果:在所建立的最佳实验条件下能有效地分离水中的12种卤代烃。各组分保留时间稳定,线性范围能满足测定要求。标准曲线的相关系数0.999 1~0.999 8,各组分的检出限0.000 3~2.000 0μg/L,精密度RSD 0.06%~2.90%,加标回收率88.6%~107.0%。结论:本法准确、简便,适合水中12种卤代烃的同时检测分析。
Objective:To establish simultaneous determination of12kinds of halogenated hydrocarbons in water by headspace gaschromatography.Methods:After the distribution of trace halohydrocarbons in the water,using HP-5capillary column forseparation,to study and optimize the influence factors of water equilibrium temperature and equilibrium time.Results:Under theoptimal experimental conditions,we can effectively separate12kinds of halogenated hydrocarbons in water.The retention time ofeach component was stable.Linear range can meet the measurement requirements.The correlation coefficient of the standard curvewas0.9991～0.9998;the detection limit of each component was0.0003～2.0000μg/L;the precision RSD was0.06%～2.90%;the recovery rate was88.6%～107.0%.Conclusion:The method is accurate and simple,and it is suitable for the simultaneousdetection and analysis of12halogenated hydrocarbons in water.
作者
张世勇
周涛
王丽华
冀丽萍
李玉芸
Zhang Shiyong;Zhou Tao;Wang Lihua;Ji Liping;Li Yuyun(Center for Disease Control and Prevention in Nanchuan District of Chongqing 408400)
出处
《中国社区医师》
2017年第5期142-143,共2页
Chinese Community Doctors
基金
重庆市南川区科技计划项目(基金编号Cx201504)~~
关键词
顶空气相色谱法
饮用水
卤代烃
Headspace gas chromatography
Drinking water
Halogenated hydrocarbons
