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Reference type: Journal
Authors: Say R
Article Title: Creation of recognition sites for organophosphate esters based on charge transfer and ligand exchange imprinting methods.
Publication date: 2006
Journal: Analytica Chimica Acta
Volume: 579
Issue: (1)
Page numbers: 74-80.
DOI: 10.1016/j.aca.2006.07.010
Alternative URL: http://www.sciencedirect.com/science/article/B6TF4-4KDBFSP-1/2/65dc9e848487ca6710bc871451cad50a

Abstract: This manuscript describes a method for the selective binding behavior of paraoxan and parathion compounds on surface imprinted polymers which were prepared using both charge transfer (CT) (methacryloyl-antipyrine, MAAP) and ligand-exchange (LE) (methacryloyl-antipyrine-gadalonium, MAAP-Gd) monomers. These polymers were prepared in the presence of azobisisobutyronitrile (AIBN) as an initiator and crosslinking EDMA and were imprinted with organophosphate esters. Influence of CT and LE imprinting on the creation of recognition sites toward paraoxan and parathion was determined applying adsorption isotherms. The effect of initial concentration of paraoxan and parathion, adsorption time and imprinting efficiency on adsorption selectivity for MIP-CT and MIP-LE was investigated. Association constant (Kass), number of accessible sites (Qmax), relative selectivity coefficient (k') and binding ability were also evaluated
Template and target information: paraoxan, parathion
Author keywords: Organophosphate ester, molecularly imprinted polymer (MIP), charge-transfer, Ligand-exchange


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