Abstract
An anion-exchange method for the separation of technetium, rhenium and manganese is outlined. After sorption on the resin column, manganese is first eluted with hydrochloric acid, rhenium with ammonium thiocyanate in hydrochloric acid, and technetium by means of nitric acid. In the eluates rhenium is determined colorimetrically and technetium radiochemically. As little as 10 μg of technetium in the form of potassium pertechnetate can be separated from 15 mg of manganese as potassium permanganate and 0–8 mg of rhenium in the form of potassium perrhenate.
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