我们采用气相色谱氢火焰检测器测定松花江水源水中氯苯含量及化工区排污含量效果很好。现介绍如下。1　实验方法1 1　原理　水源水中氯苯经二硫化碳提取 ,浓缩后用氢火焰检测器测定 ,以保留时间定性 ,按色谱峰高定量。1 2　仪器　气相色谱仪带火焰离子化检测器 ,2 5 0ｍｌ分液 We use gas chromatography hydrogen flame detector for determination of chlorobenzene content in the source water of the Songhua River and chemical industry sewage well. Now introduced as follows. 1 Experimental Method 1 1 Principle Water chlorobenzene was extracted by carbon disulfide and concentrated by a hydrogen flame detector. The retention time was qualitative, and the peak was quantitatively determined by the chromatographic peak. 1 2 instrument Gas chromatograph with flame ionization detector, 250 ml liquid separation