Abstract
Trace amounts of transition elements (Fe, Co, Ni and Cu) in zirconium fluoride and NBS SRM's were determined by substoichiometric radioactivation analysis. The contents of impurities in sublimed sample were less than those of high-purity material and of reagent grade. The detection limits of these elements in zirconium fluoride were 10 ng/g for iron, 0.01 ng/g for cobalt, 1 ng/g for nickel and 0.1 ng/g for copper. The analytical results for iron, cobalt, nickel and copper in NBS SRM's were in good agreement with certified values.
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Kobayashi, K., Shigematsu, T. Trace determination of iron, cobalt, nickel and copper in zirconium fluoride by substoichiometric radioactivation analysis. Journal of Radioanalytical and Nuclear Chemistry, Articles 113, 333–341 (1987). https://doi.org/10.1007/BF02050505
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DOI: https://doi.org/10.1007/BF02050505