Abstract

Studies of Eu 3+-extractant complexes in organic phases of interest in solvent extraction of lanthanides and actinides have been carried out using time- and wavelength-resolved laser-induced fluorescence (LIF). Even at low metal loading, the Eu 3+ is shown to be present in the organic phase as a single metal ion-extractant complex in which complete dehydration of the metal ion has occurred when the aqueous phase was nitric acid and di(2-ethylhexyl)phosphoric acid or octyl(phenyl)- N, N-diisobutylcarbamoyl-methylphosphine oxide were used as extractants.

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