Determination of polycyclic aromatic hydrocarbons in water from polar regions by solid-phase membrane extraction and ultra performance liquid chromatography with fluorescence detector

The water samples were enriched and separated by solid-phase membrane.PAHs were eluted by methylene dichloride and determined by UPLC with different fluorescence wavelengths.Fifteen kinds of PAHs were all detected in five minutes.The method quantification limits were 0.3 ng/L for Nap,0.26 ng/L for Acp,Fl,Phe and BaA,0.28 ng/L for An,Flu,BbF and Bghip,0.24 ng/L for Phy,Chr,BkF,BaP and DbA,and 2.6 ng/L for InP.The recoveries were 67%～87%.The relative standard deviations were all less than 10%.This method was handy,sensitive,accurate and suitable for the determination of PAHs according to the results of practical samples,especially samples at trace level.It provided a reliable method for the study of PAHs in polar region.