title: Determination of polycyclic aromatic hydrocarbons in seawater by high-performance liquid chromatography with fluorescence detection following micelle-mediated preconcentration.
abstract: In this work, the nonionic surfactant polyoxyethylene-10-lauryl ether has been used for the extraction and preconcentration of 14 polycyclic aromatic hydrocarbons, classified as priority pollutants by the US Environmental Protection Agency, from seawater samples. The cloud-point preconcentration previous separation by HPLC and quantification using fluorimetric detection and wavelength programming allow to determine these pollutants with detection limits ranging from 1.0 to 1.5 x 10(2) ng/l with RSDs better than 10.4%. The methodology is evaluated using well-established extraction and preconcentration methods and GC-MS.
authors: Department of Analytical Chemistry, Nutrition and Food Science, University of La Laguna, Spain.
authors: V
authors: V
authors: Pino
authors: J H
authors: JH
authors: Ayala
authors: A M
authors: AM
authors: Afonso
authors: V
authors: V
authors: González
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D008823:Micelles; D011083:Polycyclic Compounds / Q000032:analysis*; D012623:Seawater / Q000737:chemistry*; D012680:Sensitivity and Specificity; D013050:Spectrometry, Fluorescence / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D008823:Micelles; D011083:Polycyclic Compounds; D014874:Water Pollutants, Chemical