An Ion-Exchange Resin-Contact Time Method for the Study of Inorganic Equilibria in Milk

Abstract

An ion-exchange resin-contact time equilibration procedure was developed for the study of the inorganic equilibria of cations and anions in raw skim milk and processed milks. Data are presented to show removals of Ca and P from raw skin milk and true solutions at various contact times. Reproducibility data give an average standard deviation of +- 0.38 mg. Total Ca (36%) and total P (44%) were found available for exchange in 10 seconds.