Abstract
A greatly simplified separation scheme for plutonium in biological samples has been devised. It is based on the absorption of an anionic form of quadrivalent plutonium in a strong hydrochloric acid solution by a strong base anion-exchange resin. The greatest difficulty in obtaining complete recovery from some samples was in getting the sample completely dissolved. For the acid-insoluble portion of samples such as faecal ash, it was necessary to resort to carbonate and bisulphate fusions. Elution from the ion-exchange column was accomplished with sulphurous acid, and the final determination was made by liquid scintillation counting.
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