ANION EXCHANGE SEPARATION OF CALCIUM AND STRONTIUM

A new anion exchange method for separation of calcium and strontium was developed using the mixed solution of 0.25M nitric acid and 95% (v/v) methyl alcohol as the eluent. Magnesium, calcium, and strontium (total volume 1 mmole) were separated quantitatively from each other with a 22-ml column of the Amberlyst XN-1002 nitrate form. Even the separation of the sample of Ca/Sr = 500 showed fairly satisfactory results for the strontium content. (auth)