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Reference type: Journal
Authors: Wang GS, Cao QE, Xiong J, Zhu XF, Hou NB, Ding ZT
Article Title: Preparation and Recognition Properties of Vanillin-Imprinted Polymers.
Publication date: 2006
Journal: Helvetica Chimica Acta
Volume: 89
Issue: (12)
Page numbers: 3032-3040.
DOI: 10.1002/hlca.200690273

Abstract: Some new molecularly imprinted polymers (MIPs) were prepared by different protocols involving vanillin as the imprinted molecule, methacrylic acid (= 2-methylprop-2-enoic acid; MAA) as the functional monomer, and ethylene glycol dimethacrylate (EGDMA = 2-methylprop-2-enoic acid ethane-1,2-diyl ester) as the cross-linking agent. The adsorption property of the imprinted polymers was studied by UV spectrophotometry and HPLC. The results indicated that the porogen solvent had a certain influence on the adsorption performance of the polymer. The vanillin-imprinted polymer MIP1 prepared with MeOH as porogen, exhibited advantageous characteristics, i.e., a high binding activity, a good selectivity, and a rapid adsorption equilibrium. The binding parameters studied by Scatchard analysis established that there are two types of binding sites in MIP1. Finally, by packing an SPE column (SPE = solid-phase extraction) with the polymer MIP1, the vanillin was separated and enriched successfully by this sorbent from the samples of Vanilla fragrans and beer
Template and target information: vanillin
Author keywords: Vanillin, Vanilla fragrans, beer, molecularly imprinted polymers (MIPs), polymers


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