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  • 1 Zentralinstitut für Kernforschung Rossendorf bei Dresden DDR
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An extraction chromatographic method has been developed to separate plutonium and uranium from irradiated uranium fuel samples. Tributylphosphate fixed on polytetrafluoro ethylene was used as stationary phase and HNO3 of various concentrations as mobile phase. The separation of plutonium by reduction with H2SO3 was studied in column experiments. The method was applied to the separation of irradiated U/Mg-fuel with a Pu/U ratio of 1∶400.