Polarographic Determination of Tin in Foods and Biological Materials

Abstract

A rapid and precise polarographic method for the determination of tin in foods and biological materials has been developed, which is applicable to the determination of tin in concentrations as low as 0.5 part per million. The accuracy is of the order of *5% for concentrations in excess of 10 parts per million and somewhat less for smaller amounts. It has been demonstrated that moderate amounts of iron, copper, bismuth, cadmium, mercury, cobalt, and zinc may be present without interference. Lead leads to high results and a procedure in case lead is present is outlined. THE accurate determination of traces of tin in foods is of considerable interest and has many limitations.

Studies on the Toxicity of Alkyl Tin Compounds

“…Cholinesterase activities were determined as described by Davison (1953). Tin was determined polarographically (Godar and Alexander, 1946) using hydroxylamine HCO to reduce ferric iron.…”