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Reference type: Journal
Authors: Herrero-Hernández E, Carabias-Martínez R, Rodríguez-Gonzalo E
Article Title: Use of a bisphenol-A imprinted polymer as a selective sorbent for the determination of phenols and phenoxyacids in honey by liquid chromatography with diode array and tandem mass spectrometric detection.
Publication date: 2009
Journal: Analytica Chimica Acta
Volume: 650
Issue: (2)
Page numbers: 195-201.
DOI: 10.1016/j.aca.2009.07.043
Alternative URL: http://www.sciencedirect.com/science/article/B6TF4-4WTHS7H-6/2/91c51c57c0e12fa783de8b0671fe7bc7

Abstract: An extraction-preconcentration procedure based on the use of a molecularly imprinted polymer (MIP) as selective sorbent has been developed for the determination of several phenolic compounds (bisphenol-A, bisphenol-F and 4-nitrophenol) and phenoxyacid herbicides (2,4-D, 2,4,5-T and 2,4,5-TP) in honey samples. Liquid chromatography with diode array detection (LC-DAD) and electrospray ionisation-ion trap mass spectrometry (LC-IT-MS) were used for the separation, identification and quantification of these analytes. The molecularly imprinted polymer was obtained by precipitation polymerisation with bisphenol-A (BPA) as template and 4-vinylpyridine as the functional monomer. The behaviour of this sorbent was compared with those of other materials frequently used in SPE. The selectivity of the BPA-MIP for the target analytes was tested in samples containing other pesticides in common use. The recoveries achieved for all six compounds were in the 81-96% range. By applying the proposed procedure prior to LC-IT-MS, the limits of detection achieved in commercial honey samples were in the 0.1-3.8ángág-1 range, with relative standard deviations of 12-24%
Template and target information: bisphenol A, bisphenol F, 4-nitrophenol, para-nitrophenol, 2,4,-D, 2,4,5-T, 2,4,5-TP
Author keywords: molecularly imprinted polymer, bisphenol-A, phenols, Phenoxyacids, molecularly imprinted solid phase extraction, Honey


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