Separation of Strontium-90 from Calcium in Milk

Abstract

ATTENTION has recently been directed to the use of ion-exchange methods for alkaline earth separations and to the application of these techniques in the determination of radiostrontium in biological materials^1,4. The measurement of environmental levels of radionuclides often necessitates the use of comparatively large samples of biological material and involves, in the case of liquid milk, a tedious evaporation procedure². In an attempt to meet the need for a more convenient approach, a study was made of the extent of exchange, on cationic resin columns, of calcium and strontium absorbed from milk passed directly on to the columns.