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Reference type: Journal
Authors: van Hoof N, Courtheyn D, Antignac J-P, van de Weile M, Poelmans S, Noppe H, de Brabander H
Article Title: Multi-residue liquid chromatography/tandem mass spectrometric analysis of beta-agonists in urine using molecular imprinted polymers.
Publication date: 2005
Journal: Rapid Communications In Mass Spectrometry
Volume: 19
Issue: (19)
Page numbers: 2801-2808.
DOI: 10.1002/rcm.2126

Abstract: Ion suppression, a matrix effect that affects quantitative mass spectrometry, is one of the main problems encountered in liquid chromatography/tandem mass spectrometry. Two different clean-up steps for the multi-residue analysis of beta-agonists in urine were evaluated with respect to minimisation of ion suppression, namely, a mixed-phase solid phase extraction (SPE) column, i.e., clean screen Dau (CSD), and a molecular imprinted polymer (MIP) SPE column. Ion suppression experiments revealed that CSD sample clean-up can lead to false negative results for some beta-agonists, and that clean-up using MIP columns is more selective for beta-agonists than the use of CSD columns. Copyright 2005 John Wiley & Sons, Ltd
Template and target information: beta agonist, commercial MIP

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