采用C18固相膜萃取对地下水中15种多环芳烃进行富集净化，以二氯甲烷作洗脱溶剂，高效液相色谱法，荧光检测器测定。对萃取、浓缩和色谱条件进行优化，在1．00μg/L～40．0μg/L范围内测定标准系列溶液并绘制标准曲线，相关系数R2＞0．999；15种多环芳烃的仪器检出限为0．4 ng/L～3．0 ng/L；对地下水样品加标，平均回收率在75．7％～96．7％之间；标准溶液平行测定7次的RSD为3．1％～11．9％。%High performance liquid chromatography equipped with fluorescence detector was applied to the determination of 15 polycyclic aromatic hydrocarbons ( PAHs) in groundwater .The water samples were enriched and purified by C 18 solid phase membrane with methylene chloride as elution solvent .Solid phase extraction con-dition and liquid chromatography condition were optimized .Calibration curves were obtained at concentration range of 1.00 μg/L ~40.0 μg/L with correlation coefficient R2 >0.999.The method quantification limits ranged from 0.4 ng/L~3.0 ng/L.The spiked recoveries of groundwater were from 75.7%~96.7%.The rela-tive standard deviations were 3.1%~11.9%when 7 samples with known concentrations were determined .
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