Separation of trace amounts of Ca2+ and Sr2+ from K+ and Rb+ with a hydrous manganese dioxide ion exchanger.
Open Access
- 1 January 1984
- journal article
- Published by Japan Radioisotope Association in RADIOISOTOPES
- Vol. 33 (4) , 218-221
- https://doi.org/10.3769/radioisotopes.33.4_218
Abstract
Extremely large separation factors (greater than 10(2)) were found for Na-Mg, K-Ca and Rb-Sr metal ion pairs on a cryptomelane-type hydrous manganese dioxide (CRYMO) ion exchanger. Ca2+ and Sr2+ ions were quantitatively separated from a thousand times of K+ and Rb+ ions on mole basis, respectively, by using the CRYMO column. The hopeful utilities of the CRYMO are suggested for the radiochemical ion-exchange separation of radiomagnesium and radiostrontium from K and Rb salt targets.Keywords
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