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Reference type: Journal
Authors: Cacho C, Turiel E, Martin-Esteban A, Perez-Conde C, Cámara C
Article Title: Characterisation and quality assessment of binding sites on a propazine-imprinted polymer prepared by precipitation polymerisation.
Publication date: 2004
Journal: Journal of Chromatography B-Analytical Technologies in the Biomedical and Life Sciences
Volume: 802
Issue: (2)
Page numbers: 347-353.
DOI: 10.1016/j.jchromb.2003.12.018

Abstract: In this paper, the Langmuir-Freundlich isotherm (LF) is used to characterise a propazine-imprinted polymer obtained by precipitation polymerisation (MIP-P). Different rebinding studies were carried out allowing to explain the different interactions taking place between the molecularly imprinted polymer and six triazinic herbicides (desisopropylatrazine, desethylatrazine, simazine, atrazine, propazine and prometryn). The LF fitting parameters obtained (total number of binding sites, heterogeneity index and mean binding affinity) were compared to those obtained in a previous work for a propazine- imprinted polymer prepared by bulk polymerisation (MIP-B). From that study, it was concluded that precipitation polymerisation yielded polymers with a more homogeneous binding site distribution and higher affinity constants. (C) 2004 Elsevier B.V. All rights reserved


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