Spectrophotometric determination of uranium(VI) using a synergic mixture of ethyl acetoacetate and pyridine

A method is proposed for the extractive spectrophotometric determination of uranium(VI) using the synergic combination of ethyl acetoacetate (EAA) and pyridine (Py) as extractants. The optimum conditions have been evaluated by varying pH and ethyl acetoacetate and pyridine concentration. The nature of the extracted species has been determined by 1g D-1g C plots and the extracted species was found to be UO₂(EAA)₂.Py. The method has been applied for the separation and determination of uranium(VI) from synthetic mixtures.