title: Determination of chlorinated polycyclic aromatic hydrocarbons in water by solid-phase extraction coupled with gas chromatography and mass spectrometry.
abstract: Given the potential risks of chlorinated polycyclic aromatic hydrocarbons, the analysis of their presence in water is very urgent. We have developed a novel procedure for determining chlorinated polycyclic aromatic hydrocarbons in water based on solid-phase extraction coupled with gas chromatography and mass spectrometry. The extraction parameters of solid-phase extraction were optimized in detail. Under the optimal conditions, the proposed method showed wide linear ranges (1.0-1000 ng/L) with correlation coefficients ranging from 0.9952 to 0.9998. The limits of detection and the limits of quantification were in the range of 0.015-0.591 and 0.045-1.502 ng/L, respectively. Recoveries ranged from 82.5 to 102.6% with relative standard deviations below 9.2%. The obtained method was applied successfully to the determination of chlorinated polycyclic aromatic hydrocarbons in real water samples. Most of the chlorinated polycyclic aromatic hydrocarbons were detected and 1-monochloropyrene was predominant in the studied water samples. This is the first report of chlorinated polycyclic aromatic hydrocarbons in water samples in China. The toxic equivalency quotients of chlorinated polycyclic aromatic hydrocarbons in the studied tap water were 9.95 ng the toxic equivalency quotient m(-3) . 9,10-Dichloroanthracene and 1-monochloropyrene accounted for the majority of the total toxic equivalency quotients of chlorinated polycyclic aromatic hydrocarbons in tap water.
authors.affiliation: School of Municipal and Environmental Engineering, Henan University of Urban Construction, Pingdingshan, China.
authors.forename: Xianli
authors.initials: X
authors.lastname: Wang
authors.affiliation: School of Municipal and Environmental Engineering, Henan University of Urban Construction, Pingdingshan, China.
authors.forename: Haiyan
authors.initials: H
authors.lastname: Kang
authors.affiliation: School of Municipal and Environmental Engineering, Henan University of Urban Construction, Pingdingshan, China.
authors.forename: Junfeng
authors.initials: J
authors.lastname: Wu
mesh_terms: D008401:Gas Chromatography-Mass Spectrometry; D006843:Hydrocarbons, Chlorinated / Q000032:analysis*; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D052616:Solid Phase Extraction; D014874:Water Pollutants, Chemical / Q000737:chemistry*
chemical_list: D006843:Hydrocarbons, Chlorinated; D011084:Polycyclic Aromatic Hydrocarbons; D014874:Water Pollutants, Chemical
keywords: Chlorinated polycyclic aromatic hydrocarbons; Solid-phase extraction; Toxic equivalency quotients; Water