中文摘要：

按照国家颁布的《生活饮用水卫生标准》（GB 5749-2006）,2015年4月在大同辖区内应用顶空气相色谱法对160份水样中的四氯化碳含量进行了抽样检测,该法标准曲线的相关系数R〉0.999,相对标准偏差（RSD）为1.80%-9.07%,其加标回收率为90.7%-108.1%,检出限0.015μg/L;水样合格率100%。同时考察了末梢水经煮沸5min、活性炭过滤及某品牌饮水机处理后四氯化碳的含量变化,检测结果与末梢水源数据相比有显著性差异（P〈0.05）。

英文摘要：

This paper established a headspace capillary gas chromatography method for the tetrachloride carbon determination in drinking water in Datong district. This method was based on the national standards 《 National Hygiene Standard for Drinking Water》 GB （5749-2006）. For all of the 160 samples, the passing rate was 100%. A liner response was obtained within the concentration range of 0. 001-3.00 μg/L with a correlation coefficient greater than 0. 999. The limit of detection of this method was 0. 015 μg/L. The recoveries of tetrachloride carbon were 90.7 %--108. 1% , and the precision was 1.80%- 9.07 %. This article also aimed at reducing the tetrachloride carbon content in drinking water, and proposed several reducing methods for healthy, such as boiling for 5 minutes method, active carbon filtration and processed by direct drinking machine. All of these methods could significantly reduce the tetrachloride carbon in the water samples （P〈0.05）.