The Determination of Radioactive Iodine in Biologic Material.

Abstract
The sample is oxidized with 18 [image]. sulfuric acid and KMnO4. Nal is added as a carrier. The oxidized sample is distilled with reflux in the presence of oxalic acid until after the decoloration of the permanganate. The material collected in a trap containing lithium arsenite soln. is evaporated to dryness and the radioactivity detd. with a Geiger-Muller counter.

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