IODINE IN BLOOD AND THYROID OF MAN AND SMALL ANIMALS

Abstract
Organically bound I has been measured on 1 ml. samples of human serum and rat serum. Likewise, the thyroids of rats have been analyzed. The method used involves colorimetric measurements of the rate of reduction of ceric ion as catalyzed by iodide. It is suggested that this method affords a convenient way of measuring net thyroid function directly. It is also possible to investigate the intermediary metabolism of I in the thyroid and other tissues of small animals.