Authors: Vigneau O
, Pinel C
, Lemaire M
Ionic imprinted resins based on EDTA and DTPA derivatives for lanthanides(III) separation.
Publication date: 2001
Journal: Analytica Chimica Acta
Abstract: Ionic imprinting resins bearing polycarboxylic acids groups were studied in lanthanides(III) separation. Two monomers, diethylenetriamine pentaacetic acid (DTPA) and ethylenediaminetetraacetic acid (EDTA) derivatives, were synthesised and then polymerised in alcoholic medium using a free radical source. Solid-liquid competitive extraction was carried out using an aqueous solution containing gadolinium(III) and lanthanum(III) cations. Crosslinking ratios, conditioning of resins and type of chelating monomers were studied. Best results were obtained when polymers based on DTPA derivative were converted to H+ form. (C) 2001 Elsevier Science B.V. All rights reserved
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