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Reference type: Journal
Authors: Petrova H, Dakova I, Karadjova I, Dakov V, Georgiev G
Article Title: Novel Pb(II)-imprinted polymeric sorbent: Synthesis, properties and application.
Publication date: 2010
Journal: Plovdiv University 'Paisii Hilendarski'-Bulgaria Scientific Papers
Volume: 37
Issue: (5)
Page numbers: 93-102.
Alternative URL: http://argon.uni-plovdiv.bg/files/2011/04/012_NT37_2010.pdf

Abstract: Ion-imprinted polymer (IIP) particles are prepared by copolymerization of methacrylic acid as functional monomer, trimethylolpropane trimethacrylate as crosslinking agent and 2,2'-azo-bis-isobutyronitrile as initiator in the presence of a Pb(II)–4-(2-pyridylazo)resorcinol (Pb(II)–PAR) complex, and PAR only. A batch procedure is used for the determination of the characteristics of the Pb(II) solid phase extraction from the IIP produced. The optimal pH value for the quantitative preconcentration is 8, and full desorption is achieved by 1M HNO3. The selectivity coefficients (S Pb/Me) for Me = Cu(II), Ni(II), Cd(II) are 18.8, 70.0 and 23.3, respectively. It is established that Pb(II)–PAR IIPs can be used repeatedly without a considerable adsorption capacity loss. The determination of Pb(II) ions in mineral and sea waters shows that the interfering matrix does not influence the preconcentration and selectivity values of the Pb(II)-PAR IIPs.
Template and target information: lead ion, Pb(II)
Author keywords: solid phase extraction, Ion-imprinted polymer, lead, preconcentration


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