Studies on Analytical Methods for Trace Elements in Metals by Using Radioactive Isotope. II : Determination of Niobium and Tantalum in Steel

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The methods of determining and separating niobium and tantalum in steels were studied using the radioactive isotope niobium-95 and tantalum-182 as the tracer and radioactive indicator. It was seen that the perchloric acid hydrolysis separation method was most superior, and that after the single separation from iron, the sum of niobium and tantalum was successfully titrated with cupferron solution by using tantalum-182 as a radioactive indicator.
東北大学の論文