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Reference type: Journal
Authors: Dakova I, Karadjova I, Georgieva V, Georgiev G
Article Title: Synthesis and characterization of the Hg(II)-ion imprinted microbeads and membranes for enrichment of inorganic Hg(II).
Publication date: 2011
Journal: Annuaire de l'Université de Sofia 'St. Kliment Ohridski' Faculte de Chimie
Volume: 102-103
Page numbers: 165-175.
Alternative URL: http://www.chem.uni-sofia.bg/annual/pdf/Tom102_103-2011.PDF#page=165

Abstract: Hg(II)-ion imprinted polymer microbeads have been prepared by copolymerization of methacrylic acid as monomer, trimethylolpropane trimethacrylate as crosslinking agent and 2,2'-azobisisobutyronitrile as initiator, in the presence of Hg(II)-1-(2- thiazolylazo)-2-naphthol complex. The separation and preconcentration characteristics of the copolymers for inorganic mercury have been investigated by batch procedure. The optimal pH value for the quantitative sorption is 7. The selectivity of the copolymer toward inorganic mercury(II) ion is confi rmed through the comparison of the competitive adsorptions of CH3Hg(II), Cd(II), Cu(II), Ni(II), Pb(II) and high values of the selectivity and distribution coeffi cients have been calculated. The recognition properties of the Hg(II)-ion imprinted microspheres are compared to those of the Hg(II)-ion imprinted membranes. The membranes are prepared by loading of Hg(II)-imprinted microbeads in the bulk or on the surface of chitosan membranes.
Template and target information: mercury ions, Hg(II)
Author keywords: solid phase extraction, Ion-imprinted polymer, membrane, preconcentration, Inorganic mercury

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