Separation of trace amounts of Ca2+ and Sr2+ from K+ and Rb+ with a hydrous manganese dioxide ion exchanger.
Separation of trace amounts of Ca2+ and Sr2+ from K+ and Rb+ with a hydrous manganese dioxide ion exchanger.
复制标题
使用含水二氧化锰离子交换剂从 K 和 Rb 中分离痕量 Ca2 和 Sr2。
DOI：
10.3769/radioisotopes.33.4_218
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发表时间：
1984
期刊：
影响因子：
--
通讯作者：
M. Abe
中科院分区：
文献类型：
--
作者：
M. Tsuji;M. Abe
在锰锰型水合二氧化锰(CRYMO)离子交换器上，发现Na-Mg、K-Ca和Rb-Sr金属离子对的分离系数极大(大于10(2))。用CRYMO色谱柱分别从1000倍的K+和Rb+离子中定量分离出了Ca2+和Sr2+离子。提出了CRYMO在K、Rb盐靶放化离子交换分离放射性镁和放射性锶中的应用前景。
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.