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Reference type: Journal
Authors: Büyüktiryaki S, Say RI, Ersöz A, Birlik E, Denizli A
Article Title: Selective preconcentration of thorium in the presence of UO22+, Ce3+ and La3+ using Th(IV)-imprinted polymer.
Publication date: 2005
Journal: Talanta
Volume: 67
Issue: (3)
Page numbers: 640-645.
DOI: 10.1016/j.talanta.2005.03.016
Alternative URL: http://www.sciencedirect.com/science/article/B6THP-4G7NF4K-1/2/de465e3671c84b68a19eeb6b81142093

Abstract: We have prepared Th(IV) ion-imprinted polymers, which can be used for the selective preconcentration of Th(IV) ions, represented by uranium and lanthanides. N-methacryloyl-(l)-glutamic acid (MAGA) was chosen as the complexing monomer. In the first step, Th(IV) was complexed with MAGA and the Th(IV)-imprinted poly[ethylene glycol dimethacrylate-N-methacryloyl-(l)-glutamic acid] (Poly(MAGA-EDMA)) beads were synthesized by suspension polymerization. After that, the template Th(IV) ions were removed using 8.0 M HNO3 solution. The breakthrough capacity was 40.44 mg Th(IV)/g beads. The relative selectivity coefficients of imprinted beads were 68, 97 and 116 for UO2 2+, La3+ and Ce3+, times greater than non-imprinted matrix, respectively. The Th(IV)-imprinted beads could be used many times without decreasing their breakthrough capacities significantly
Template and target information: thorium ion, Th(IV)
Author keywords: Thorium preconcentration, ion imprinting, IP, IP-SPE, packed-bed column

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