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Reference type: Journal
Authors: Haginaka J, Kagawa C
Article Title: Retentivity and enantioselectivity of uniformly sized molecularly imprinted polymers for d-chlorpheniramine and - brompheniramine in hydro-organic mobile phases.
Publication date: 2004
Journal: Journal of Chromatography B-Analytical Technologies in the Biomedical and Life Sciences
Volume: 804
Issue: (1)
Page numbers: 19-24.
DOI: 10.1016/j.jchromb.2003.12.037

Abstract: Uniformly sized molecularly imprinted polymers (MIPs) for d- chlorpheniramine (CP) and -brompheniramine (BP) have been prepared by a multi-step swelling and polymerization method using methacrylic acid (MAA) or 2-(trifluoromethyl)acrylic acid (TFMAA) and ethylene glycol dimethacrylate (EDMA) as a functional monomer and cross-linker, respectively. The retentive and enantioselective properties of CP, BP and their structurally related compounds on the MIPs were evaluated using hydro-organic mobile phases. CP and BP enantiomers were retained the most as a monovalent cation on MAA-co-EDMA polymers and a divalent cation on TFMAA-co-EDMA polymers. Ion exchange and hydrophobic interactions could mainly work for the retention and enantioseparation of CP and BP on both MAA-co- EDMA and TFMAA-co-EDMA polymers in hydro-organic mobile phases. Though the respective MIPs gave the highest enantioselectivity for the template molecule, cross-reactivity for CP and BP was observed with them. (C) 2004 Elsevier B.V. All rights reserved

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