| 摘要 |
PROBLEM TO BE SOLVED: To provide a new separation method of a nuclide included in radioactive waste, and a method for simple uranium quantitative analysis in the radioactive waste. SOLUTION: In step S1, hydrofluoric acid aqueous solution wherein the nuclide in the radioactive waste is dissolved is prepared and produced. In step S2, ion-exchange adsorption of the nuclide dissolved in the hydrofluoric acid aqueous solution is performed by using a fluorine-ion type anion-exchange resin. In step S3, the nuclide subjected to the ion-exchange adsorption onto the anion-exchange resin is selectively eluted and separated by a prescribed chemical medical solution. In step S4, the nuclide is subjected to coprecipitation separation by adding, for example, samarium. In step S5, measurement of anα-ray spectrum of a coprecipitate is performed. Thus, for example, identification of an uranium isotope in the radioactive waste and its quantitative analysis can be performed simply. COPYRIGHT: (C)2007,JPO&INPIT
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