A Simplified Method for Butanol-Extractable Iodine and Butanol-Insoluble Iodine

Abstract

A simplified method is presented for the determination of butanol-extractable iodine(BEI). The results compare favorably with the original method as described by Man et al. Also available, as part of the procedure for BEI, is a direct chemical determination for butanol-insoluble iodine (Bll) from the same specimen of serum. Heretofore,nonbutanol-extractable iodine has been studied only by means of radioactivity. This fraction merits further investigation.