Abstract
Substoichiometric isotope dilution analysis has been applied for the determination of trace elements in liquid samples, of carrier content in radioisotope solution and of concentration of organic reagent. Cu in mineral acids and in ZnSe single crystal was determined by the substoichiometric extraction with dithizone. The values of 1.8 and 0.018 ppm in nitric acid and distilled one and of 1.4 and 0.44 ppm in ZnSe were obtained. Cu and P carrier contents in64Cu and32P solutions were determined by the substoichiometric extractions with dithizone in CCl4 and with molybdic acid into MIBK in the series of the solutions adding various amounts of Cu or P carrier. An analogous method has been applied for the determination of dithizone and diethyldithiocarbamate solutions. The method was also applied for the determination of60Co radioactivity in environmental samples. The analytical result of water samples is described.
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Kudo, K., Kobayashi, K. Determination of trace elements and radioactive materials by substoichiometric isotope dilution analysis. J. Radioanal. Chem. 53, 163–172 (1979). https://doi.org/10.1007/BF02517916
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DOI: https://doi.org/10.1007/BF02517916