4.7 Article

Determination of some endocrine disrupter chemicals in urban wastewater samples using liquid chromatography-mass spectrometry

Journal

MICROCHEMICAL JOURNAL
Volume 88, Issue 1, Pages 87-94

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/j.microc.2007.10.003

Keywords

alkylphenols; bisphenol A; bisphenol A chlorinated derivatives; alkylphenols; phthalate esters; liquid chromatography-mass spectrometry (LC-MS); wastewater analysis

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An analytical method for the simultaneous determination of trace amounts of fourteen endocrine disrupter chemicals (EDCs) in urban wastewater samples has been developed. The studied compounds were: bisphenol A and its chlorinated derivatives (monochloro, dichloro, trichloro and tretrachlorobisphenol A), three alkylphenols (4-n-nonyl, 4-n-octyl and 4-(tert-octyl)phenol) and six well known phthalate esters (dimethyl, diethyl, di-n-butyl, butylbenzyl, bis(2-ethyl hexyl) and di-n-octylphthalate). The method involves extraction from the samples and preconcentration of the analytes using a solid-phase extraction (SPE) procedure and subsequent liquid chromatographic separation with mass spectrometric detection (LC-MS). Bisphenol IF was used as a surrogate. Quantification limits found ranged between 12 ng L-1 for diethylphthalate and 69 ng L-1 for 4-(tert-octyl)phenol. The method was satisfactorily used for determination of these chemicals in urban wastewater samples of Granada City (Spain) and validated using a recovery assay with spiked samples. (C) 2007 Elsevier B.V. All rights reserved.

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