饮用水；挥发性卤代烃；氯仿；四氯化碳。

Study on the levels of volatile halogenerated hydrocarbon in drinking water in Linyi City.

选用甲醇、正丙醇、乙腈、四氯化碳作探针分子。

Methanol, n-propyl alcohol, acetonitrile and carbon tetrachloride were selected as "molecular probe".

如果没有，无水酒精和四氯化碳都是可行的。

If not, anhydrous alcohol and carbon tetrachloride are feasible.

因此，通过四氯化碳催化氢化脱氯生成氯仿显得尤为重要。

Therefore, it is important for the catalytically hydro dechlorination of carbon tetrachloride to chloroform.

使用固相微萃取装置用气相色谱电子捕获检测器测定饮用水中氯仿和四氯化碳。

By using solid phase microextraction instrument, chloroform and tetrachloromethane in drinking water was detected in ECD of gas chromatography.