Authors: Mezcua, M.; Ferrer, I.; Hernando, M. D.; Fernández-Alba, A. R.

Source: Food Additives and Contaminants, Volume 23, Number 11, November 2006 , pp. 1242-1251(10)

Publisher: Taylor and Francis Ltd

Abstract:

<p>Bisphenol A is a commonly known endocrine-disrupting compound detected in environmental water samples. The persistence of this compound has been studied by photolysis and photocatalysis studies. In this work, several experiments were performed in order to identify the degradation products under various conditions and in different types of matrices (deionized and waste water). These studies included the influence of sodium hypochlorite (NaClO), commonly present in drinking water, on the generation of chlorine by-products of bisphenol A. The effect of catalyses in solar degradation studies was evaluated as well. The identification of the degradation products was accomplished by liquid chromatography/time-of-flight/mass spectrometry (LC-ToF-MS), which provided highly selective information about elemental compositions. Accurate mass measurements for three main degradation products permitted the postulation of proposed empirical formula in this study. Some of the degradation products were formed in waste water matrices, thus suggesting their potential presence in environmental conditions and in drinking water.</p>

Keywords: Photolysis; photocatalysis; bisphenol A; liquid chromatography/time-of-flight/mass spectrom; waste water; chlorination; drinking water

Document Type: Research article

DOI: http://dx.doi.org/10.1080/02652030600889541

Affiliations: 1: Department of Analytical Chemistry, University of Almería, Carretera Sacramenta s/n, La Cañada de San Urbano, 04120 Almería, Spain

Publication date: 2006-11-01

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