光离子化检测器便携式气相色谱仪快速测定水中苯系物

The Fast Determination of Aromatic Hydrocarbons in Water by Head Space Method Using Portable Gas Chromatograph with Photoionization Detector(PID).

本文研究了使用光离子化检测器便携式气相色谱仪，在环境温度下手工摇荡的快速顶空法测定水中苯系物（苯、甲苯、乙苯、邻、间、对位的二甲苯及异丙苯）的分析方法。方法的线性范围为０～１８０μｇ／Ｌ，相关系数均在０．９９６以上，方法的变异系数分别为１．０～１４％（１０μｇ／Ｌ），２．９～７．８％（３０μｇ／Ｌ），方法的最低检测限达０．５～１．５μｇ／Ｌ。

The fast field determination method of aromatic hydrocarbons (benzene,toluene,ethyl benzene,o xylene,m xylene,p xylene and i propyl benzene)has been studied by headspace using portable gas chromatograph with photoionization detector(PID).The method shows a good linearity between 0 180μg/L of above benzenes,the correlation coefficients are all above 0 996,RSD are 1 0 14%(10μg/L),2 9 7 8%(30μg/L),and the determination limits are 0 5 1 5μg/L.