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Sequential method for the determination of uranium, thorium and 226Ra by liquid scintillation alpha spectrometry
M P Blanco Rodríguez1, F Vera Tomé, J C Lozano
1Departamento de Física, Facultad de Ciencias, Universidad de Extremadura, Badajoz, Spain.
Abstract:
A new procedure for the determination of uranium, thorium and 226Ra from the same aliquot of an aqueous sample using extractant scintillators and liquid scintillation alpha spectrometry is proposed. The procedure is designed such that the same aqueous phase can be used in all the stages, with slight modifications. The procedure is thus very simple, requiring little manipulation of the sample. Testing of the procedure was performed obtaining satisfactory results and high reproducibility.