Browsing by Subject "Actinides"
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Alpha radiometry of uranium in surface and ground waters by liquid scintillation counting after separation of the radionuclide by cation exchange
(2008)The alpha radioactivity of surface and ground water samples has been determined by liquid scintillation counting (LSC) after chemical preparation of the samples by cation exchange using the Chelex 100 resin. The method ...
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Alpha spectroscopic analysis of actinides (Th, U and Pu) after separation from aqueous solutions by cation-exchange and liquid extraction
(2010)The radioactivity concentration of 236Pu, 232U and 228Th in aqueous samples has been determined by means of alpha spectroscopy after chemical separation and pre-concentration of the radionuclides by cation exchange and ...
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A comparative study on the sorption of tri- and hexavalent actinides on sea sediments
(2017)The interaction of tri- and hexavalent actinides with local, Cypriot marine sediments has been investigated as a function of initial metal concentration, before and after “coating” with natural organic matter. Evaluation ...
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Selective separation of actinyl(V,VI) cations from aqueous solutions by Chelex-100
(2012)Experimental studies on the selectivity of Chelex-100 resin for the separation of actinide cations at different oxidation states (III, IV, V and VI) from aqueous solution have shown that Chelex-100 presents increased ...
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Article
Solid-Liquid Phase Equilibria of Pu(VI) and U(VI) in Aqueous Carbonate Systems. Determination of Stability Constants
(1997)The carbonate complexation constants of hexavalent plutonyl and uranyl ions are determined by solubility study of PuO2CO3(s) and UO2CO3(s) under 100% and 1% CO2 atmosphere for Pu(VI) and 100% CO2 atmosphere for U(VI). pH ...
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Spectroscopic investigations on the effect of humic acid on the formation and solubility of secondary solid phases of Ln2(CO3) 3
(2011)The formation of secondary Ln(III) solid phases (e.g., Nd 2(CO3)3 and Sm2(CO3) 3) was studied as a function of the humic acid concentration in 0.1 mol/L NaClO4 aqueous solution in the neutral pH range (5-6.5). The solid ...