title: Comparison of traditional cloud-point extraction and on-line flow-injection cloud-point extraction with a chemiluminescence method using benzo[a]pyrene as a marker.
abstract: In this work, using benzo(a)pyrene (BaP) as marker, the analytical merits of on-line flow-injection cloud-point extraction (FI CPE), including preconcentration factor, extraction efficiency, sample throughput, and analysis time were evaluated by use of peroxyoxalate chemiluminescence (CL) detection. Moreover, by detailed discussion of several preconcentration conditions for traditional and on-line FI CPE the advantages of on-line FI CPE became conspicuously apparent. When coupled with separation techniques such as high-performance liquid chromatography (HPLC) or capillary electrophoresis (CE), on-line FI CPE-CL has much potential for analysis of low concentrations of polycyclic aromatic hydrocarbons (PAH) in environmental samples.
authors.affiliation: State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing, 100085, People's Republic of China.
authors.forename: Guan Qun
authors.initials: GQ
authors.lastname: Song
authors.forename: Chao
authors.initials: C
authors.lastname: Lu
authors.forename: Kazuichi
authors.initials: K
authors.lastname: Hayakawa
authors.forename: Jin-Ming
authors.initials: JM
authors.lastname: Lin
mesh_terms: D001564:Benzo(a)pyrene / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid; D019075:Electrophoresis, Capillary; D017022:Flow Injection Analysis / Q000379:methods*; D008163:Luminescent Measurements
chemical_list: D001564:Benzo(a)pyrene