GC-MS测定饮用水中挥发性有机物

Determination of volatile organic compounds in drinking water by GC-MS

建立了吹扫捕集与气相色谱/质谱(GC-MS)联用测定饮用水中13种挥发性有机物的测定方法.该方法的加标回收率在90%～110%,相对标准偏差小于5.0%,灵敏度高,准确度好,已成功地用于饮用水中挥发性有机污染物的测定,且结果令人满意.

A analytic method of purge and trap concentration with gas chromatography and mass spectrometry(GC-MS) was established for determination of 13 kinds of volatile organic compounds(VOCs) in drinking water.The recovery ratio of this method was 90%～110%,and relative standard deviations(n=7) was generally lower than 5.0% for 30 μg/L standard VOCs.This method is sensitive and accurate.The application of the method to the determination of VOCs in real sample of drinking water was tested and satisfactory results were obtained.