提出了分散液液微萃取-气相色谱法测定水中苯系物的方法。取水样10.00 mL，以100 μL二硫化碳为萃取剂、0.50 mL甲醇为分散剂进行分散液液微萃取，萃取过程可在30s以内完成，富集倍数达100左右。离心后取下层二硫化碳溶液进行色谱测定，使用大口径毛细管柱不分流进样模式，氢火焰离子检测器（FID）检测。7种苯系物的质量浓度在0.002 0~1.00 mg·L^-1范围内呈线性，方法的检出限（3S/N）为0.5~0.6 μg·L^-1。在3种浓度水平下进行加标试验，测得的回收率为87.0%~101%，相对标准偏差（n=6）小于8.5%。

The method was proposed for determination of 7 benzene homologues in water by dispersive liquid-liquid microextraction-GC. The water sample (10.00 mL) was extracted for 30 s with 100 μL of CS₂, and with 0.5 mL of CH₃OH added as dispersant. Seven benzene homologues were transferred from water into CS₂, and enriched to about 100 times in concentration. After centrifuging, the lower phase of CS₂ was taken and analyzed by GC. Large diameter capillary column and sampling by the mode of non-streaming together with FID detector were adopted in GC analysis. Linear relationships between values of peak areas and mass concentrations of 7 the benzene homoloques were obtained in the same range of 0.002 0-1.00 mg·L^-1, and values of detection limits (3S/N) found were in the range of 0.5-0.6 μg·L^-1. Tests for recovery were made by standard addition method at 3 concentration levels, giving values of recovery in the range of 87.0%-101% and RSDs (n=6) less than 8.5%.