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An analytical method is described for the determination of 16 polycyclic aromatic hydrocarbons (PAHs) in aqueous samples. These 16 PAHs are of environmental concern, since 15 of them are included on the EPA Priority Pollutant list. After liquid-liquid extraction, the concentrated samples are analyzed by reversed-phase liquid chromatography with fluorescence detection. These 16 PAHs are almost fully resolved chromatographically, so they can be determined in a single run. The method is applied to the analysis of several environmental water samples and several of these compounds are quantitated at concentrations below 10 ng/L in the original sample.

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