Abstract
A simple and rapid method has been developed for the separation and determination of total radiostrontium in soil. The method consists of three basic steps: oxalate precipitation to remove bulk potassium, chromatographic separation of strontium from most inactive and radioactive interferences utilizing a crown ether (Sr. Spec, EIChroM Industries, Il. USA) and oxalate precipitation of strontium to evaluate the chemical yield. Radiostrontium is then determined by liquid scintillation counting of the dissolved precipitate. When 10 g samples of soil are used, the sensitivity of the method is about 10 Bq/kg. The chemical yield is about 80%. The separation and determination of radiostrontium can be carried out in about 8 hours.
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Vajda, N., Ghods-Esphahani, A., Cooper, E. et al. Determination of radiostrontium in soil samples using a crown ether. Journal of Radioanalytical and Nuclear Chemistry, Articles 162, 307–323 (1992). https://doi.org/10.1007/BF02035392
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DOI: https://doi.org/10.1007/BF02035392