4.4 Article

EDTA and DTPA modified ligands as sequestering agents for uranyl decorporation

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TETRAHEDRON
卷 68, 期 4, 页码 1163-1170

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PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2011.11.065

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Synthesis of modified EDTA and DTPA ligands and determination of their binding affinities for the uranyl cation are described. Thanks to a screening method, based on a chromophoric complex displacement procedure, chelating properties were studied in aqueous media under various pH conditions for evaluation of their in vivo uranyl-removal efficacy. Each ligand showed a more or less pronounced affinity for uranium. Specific ligands based on EDTA or DTPA analogues containing sulfocatecholamide (CAMS) were found to exhibit a significant affinity towards uranyl ion in acidic, neutral or basic conditions. (C) 2011 Elsevier Ltd. All rights reserved.

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