BIANCA GERALDO

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Radioanalytical methods for sequential analysis of actinide isotopes in activated carbon filter‑bed waste
2020 - GERALDO, BIANCA; ARAUJO, LEANDRO G. de; VICENTE, ROBERTO; TADDEI, MARIA H.T.; CHEBERLE, SANDRA M.; MARUMO, JULIO T.
In this work, we compare methods for the sequential determination of U and the transuranium elements Np, Pu, Am, and Cm. The chemical yield, the time spent in the analysis, the amount of secondary waste, and the costs of each method are the aspects of interest. Two methods were compared: extraction chromatography (EC) and ion exchange plus extraction chromatography (IE + EC). The chemical yields of (EC) and (IE + EC) were similar for all radionuclides. The (EC) method is the more effective with respect to time of analysis, the amount of secondary waste and costs.