气提吸附／热脱附／气相色谱－质谱法分析污水中的痕量有机物

采用气提吸附／热脱附／气相色谱－质谱法对齐鲁公司所处地区工业污水进行分析。方法采用Ｔｅｎａｘ－ＧＣ吸附剂对样品进行气提吸附，脱附时样品直接进入色谱仪汽化室，一次进样即可完成全组分分析，共检测出含四氯丙醚在内的４０种有机组分，测定了各组分的程序升温保留指数。气相色谱－质谱法测定出四氯丙醚三个异构体的结构。

The Analysis of Organic Compounds in Waste Water by Gas

One of the main sources for the pollution of water is the exhaust of large amount of industrial waste water. The analysis of industrial waste water sample in the area of Qilu Petro Chemical Co. by using gas extraction/thermal desorption/GC/MS method was carried out in this work. In this method, the Tenax GC was used as an adsorber and the N 2 of high purity as extraction gas. Through dynamic head space, the volatile organic compounds in water were carried into adsorbing unit. Then the adsorbed components were heated and entered into injector directly. Forty organic compounds were separated by programmed temperature GC and 33 of them were chloro compounds. The programmed temperature retention indexes ( I PT ) of 40 organic compounds were obtained. The optimization of adsorption/desorption and GC operating para