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Reference type: Journal
Authors: O'Mahony J, Moloney M, McCormack M, Nicholls IA, Mizaikoff B, Danaher M
Article Title: Design and implementation of an imprinted material for the extraction of the endocrine disruptor bisphenol A from milk.
Publication date: 2013
Journal: Journal of Chromatography B
Volume: 931
Page numbers: 164-169.
DOI: 10.1016/j.jchromb.2013.05.025
Alternative URL: http://www.sciencedirect.com/science/article/pii/S1570023213003000

Abstract: This paper describes the determination of bisphenol A (BPA) in milk samples, using a novel molecularly imprinted polymer. The imprinted polymer was developed using a rational design approach, and pre-polymerization interactions were investigated using molecular dynamics simulations and X-ray crystallography. A hydroquinone-imprinted polymer was used for solid phase extraction (SPE) clean-up of samples. BPA was quantified by high performance liquid chromatography (HPLC) and fluorescence (FLD) detection. Following validation, the method described was capable of determining bisphenol A in milk down to a limit of detection of 1.32 μg kg-1. The method was applied to a survey (n = 27) of commercial milk products; BPA was detected in one of the samples, at a level of 176 μg kg-1. Test results were confirmed by a parallel UHPLC-MS/MS analytical method. This demonstrates the utility of the hydroquinone-imprinted polymer for application to selective sample clean-up and analysis of bisphenol A in milk, avoiding possible detrimental affects associated with template bleeding and without the need for expensive or difficult-to-obtain template
Template and target information: hydroquinone, bisphenol A, BPA
Author keywords: MIP, bisphenol A, SPE, milk, UHPLC-MS, MS, HPLC-FLD

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