GC/MS联用仪对几种自来水中有机污染物的分析

采用美国惠普公司色谱—质谱联用仪，研究了武汉市几种自来水中所含有机污染物的种类、组成及相对含量，得出了这几种水中有机物的分布特征，分析了污染物的来源，并从不同角度比较了这几种水的污染情况。

Study on the Organic Pollutants from Several Kinds of Running Water by GC MSD System.

In this paper,we determined the organic pollutants from 5 kinds of running water in wuhan by GC MSD system(Hewlett Packard).About 23 76 compounds in each sample were identified by the method.There consist of alkanes,alkanes,alkenes,benzene families,polycyclic aromatic hydyocarbons(PAHs)alcohols,ehters,ketones,acids,esters,amines and so on.It showed that the relative contents of benzene families and PAH S were 48 55%,85 59%,50 47%,83 70% and 34 12% in each analyzed water sample.we also selected the feature ions of benzene families and PAHs,such as those with m/z of 77,128,154 etc.to obtain the selective ion mass spectra(SIM)which have better sensitivity and selectivity.