Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/49123
Title: Extraction and Determination of Phenolic Derivatives in Water Samples by Using Polyoxyethylene Surfactants and Liquid Chromatography with Photodiode Array Detection
Authors: Mahugo Santana,Cristina Isabel 
Ferrera, Z. Sosa 
Rodríguez, J. J.Santana 
UNESCO Clasification: 2301 química analítica
Keywords: Mediated Phase Separations
Cloud-Point Extractions
Optimization
Pollutants
Issue Date: 2004
Publisher: 1060-3271
Journal: Journal of AOAC International 
Abstract: Methodology based on the cloud-point phenomenon was applied to the comparative study of 3 different polyoxyethylene nonionic surfactants in order to extract and preconcentrate a group of phenolic derivatives in water samples; these phenolic compounds, which were determined by liquid chromatography with UV detection, included 11 pollutants given priority by the U.S. Environmental Protection Agency. The optimum conditions for the extraction and preconcentration of phenolic compounds were established for each surfactant. The surfactant that gave the best extraction and preconcentration of the analytes under study was polyoxyethylene 6 lauryl ether (C12E6) with detection limits of <3.5 microg/L for all the phenolic compounds tested. The method was applied to seawater and depurated wastewater samples.
URI: http://hdl.handle.net/10553/49123
ISSN: 1060-3271
Source: Journal of AOAC International [ISSN 1060-3271], v. 87, p. 166-171
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