The absorption and excretion of ‘minor’ elements by man

Abstract

Metabolism expts. on [male][male] and [female][female], combined with intraven. injs. of Co, Ni, Sn and Mn salts, showed that: One man excreted about 20% of his food Co in the urine. Injected Co was excreted slowly, mainly by the kidneys. Two men excreted 60-70% of their food Ni in the urine. Injected Ni was excreted slowly, mainly by the kidneys. Two men excreted 50-80% of their food Sn in the urine. Injected Sn was excreted very largely by the kidneys. Only a very small part of the Mn in the food was excreted in the urine, and there was no increase after the intraven. injs. of Mn salts. Two persons retained the whole of the injected Mn, a 3d excreted about 50% by the bowel.