采用CD-WAX毛细管柱和FID检测器，以正癸烷为内标物，建立了苯、甲苯、乙苯、对二甲苯、间二甲苯和邻二甲苯等6种苯类溶剂同时测定的气相色谱分析方法。苯、甲苯、乙苯、对二甲苯、间二甲苯和邻二甲苯的标准偏差为0.0024～0.1720，变异系数为0.61%～2.96%，线性相关系数为0.9987～0.9998，6种成分4个水平的添加回收率为97.97%～101.77%。该法分离效果好、准确度高、重现性好且操作简单快速。%A gas chromatography method was developed for simultaneous determination of benzene, methylbenzene, ethylbenzene, p-xylene, m-xylene, o-xylene on CD-WAX capillary column with FID detector. The results showed that the linear correlation coefficients of benzene, methylbenzene, ethylbenzene, p-xylene, m-xylene, o-xylene were 0.998 7-0.999 8, the variation coefficients were 0.61%-2.96%, and the fortified recoveries were 97.97%-101.77%. The method had such advantages as good separation, excellent repeatability, high accuracy, etc.
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