Separation of Iodine Compounds is Serum by Gel Filtration

Abstract

The fractionation of protein-hound iodine compounds in serum from the non-protein-bound ones can be performed with the same reliability by precipitation, by gel filtration and by using ion exchange resin. In the colorimetric assay of stable protein-bound iodine, and also when measuring the radioactivity after incineration, the last-mentioned method has, in our series, given too low values, evidently due to losses during the incineration procedure.