Journal
SCIENCE OF THE TOTAL ENVIRONMENT
Volume 443, Issue -, Pages 1-6Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.scitotenv.2012.10.071
Keywords
Endrocrine disrupting compounds; Hollow fiber liquid phase microextraction; n-Octylphenol; n-Nonylphenol; Environmental water; HPLC fluorescence detection
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Funding
- Direccion General de Investigacion y Gestion del Plan Nacional de I+D+i (Ministerio de Educacion y Ciencia) [CTM2009-12858-C02-01]
- University of Seville
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This work proposes for the first time the use of a three phase hollow fiber liquid phase microextraction (HF-LPME) procedure for the extraction, and the later HPLC determination using fluorescence detection, of two much known endocrine disrupting compounds (EDCs): n-octylphenol (OP) and n-nonylphenol (NP). The extraction was carried out through a dihexyl ether liquid membrane supported on an Accurel (R) Q3/2 polypropylene hollow fiber. Optimum pH for donor and acceptor phases and extraction time were established. Enrichment (preconcentration) factors of 50 were obtained that allows detection limits of 0.54 and 0.52 ng mL(-1) for OP and NP, respectively. The method was successfully applied to the determination of these EDCs in environmental water samples, including urban wastewaters. (C) 2012 Elsevier B.V. All rights reserved.
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