顶空气相色谱法测定饮用水中的三氯甲烷及四氯化碳

摘要

A method for the determination of trichloromethane and carbon tetraehloride in water by headspaee gas chromatography was studied. The results showed that the recovery was ranged between 92%- 99% and the relative standard deviations were ranged between 2.1% - 6.3 %. This method is accurate and the pre-proeessing of this method is simple.%利用国产顶空进样设备及GC-ECD（气相色谱-电子捕获检测器）建立了水中挥发性组份三氯甲烷、四氯化碳的测定方法。该方法的相对标准偏差为2．1—6．3％，样品的回收率为92％～99％。方法简化了样品处理过程，检出限与重复性均达到相关国家标准要求。