Abstract
Two new simple methods were studied for the analysis of radium in fresh waters by concentration and purification. Both methods are based on the use of an inorganic selective adsorber, namely basic lead rhodizonate, LERHO, and partially reduced tin dioxide (PRTD). The procedures were checked by using filtered fresh waters spiked with 0.1 Bq of226Ra, and in the presence of few μg/l of barium. In each experiment133Ba radioisotope was added to water samples to measure the yield of the overall procedure by γ-counting. Barium and radium were adsorbed from basic solutions on LERHO packed chromatographic column in the first procedure, while batch experiments were preferred for the adsorption on PRTD. After separation,226Ra and barium were eluted from the exchangers and co-precipitated onto small filters as thin film, supported on an inactive barium sulphate substrate, to be submitted to alpha-and gamma-spectrometry. Both methods gave promising results.
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References
A. F. Meinhold, L. D. Hamilton, Environ. Sci. Res., 46 (1992) 293.
V. F. Hodge, G. A. Laing, Radiochim. Acta, 64 (1994) 211.
M. T. Valentini Ganzerli, L. Maggi, V. Crespi Caramella, Characterisation of Lead Rhodizonate as Barium and Radium Adsorber from Fresh Waters. Part I: Preparation and Characterisation of Lead Rhodizonate, in press.
M. T. Valentini Ganzerli, L. Maggi, V. Crespi Caramella, G. Premoli, Characterisation of Lead Rhodizonate as Barium and Radium Adsorber from Fresh Waters. Part II: Adsorption Behavior of Earth Alkaline Ions, in press.
M. T. Ganzerli Valentini, R. Stella, L. Maggi, J. Radioanal. Nucl. Chem., 132 (1989) 349.
R. Stella, M. T. Ganzerli Valentini, L. Maggi, J. Radioanal Nucl. Chem., 161 (1992) 413.
C. W. Sill, Anal. Chem., 53 (1981) 412.
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Ganzerli, M.T.V., Caramella, V.C., Maggi, L. et al. Use of inorganic adsorbers in radium analysis. J Radioanal Nucl Chem 229, B39–41 (1998). https://doi.org/10.1007/BF02389443
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DOI: https://doi.org/10.1007/BF02389443