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Method for detecting and characterising actinide-bearing micro-particles in soils and sediment of the Fukushima Prefecture,Japan |
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| Authors: | Jaegler Hugo Pointurier Fabien Onda Yuichi Angulo Jaime F Griffiths Nina M Moureau Agnes Faure Anne-Laure Marie Olivier Hubert Amélie Evrard Olivier |
| Institution: | 1.Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata, 700009, India ; |
| Abstract: | An aqueous biphasic system has been used for selective extraction of U(VI) ions from Th(IV), Sm(III) and Ce(III). Role of different biomolecules like morin, catechin, hesperidin and 4-hydroxycoumarin have been studied. Morin serves as the best reagent when citrate ions are used as a masking agent. Citrate forms stronger complexes with the other metal ions than morin thereby restricting their extractions. Contrarily, U(VI) forms a stronger complex with morin than citrate and is selectively extracted under the same conditions. It was also observed that morin can act as a spectrophotometric reagent for ratiometric detection and analysis of U(VI) ions. |
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