饮用水中挥发性三卤甲烷(THM)_s测定方法的改进

To improve the method of measurese about the volatility (THM)_s inside the drinking water

本文使用吹扫捕集法来前处理水样,用带有电子捕获检测(ECD)的气相色谱仪来测定水中三卤甲烷(THM)_s。水样加标回收率在85%～115%之间,相对标准偏差在5%左右。实验结果表明,该法具有简单、快速、灵敏的特点。

Using the method of purge and trap to deal with the water in advance,to determine the (THM),in water using the gas chromatography with the Electron Capture Detector (ECD) . The recovery ration of the method were 85%~ 115%, the relative standard deviations were 5.0% around-The method is simple, rapid and sense by proposed with the experiment.