期刊
JOURNAL OF CHROMATOGRAPHY A
卷 949, 期 1-2, 页码 291-299出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0021-9673(01)01589-8
关键词
water analysis; cloud-point extraction; extraction methods; polynuclear aromatic hydrocarbons; polyoxyethylene-10-lauryl ether; surfactants
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(.)10(2) ng/l with RSDs better than 10.4%. The methodology is evaluated using well-established extraction and preconcentration methods and GC-MS. (C) 2002 Elsevier Science B.V. All rights reserved.
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