Tsuji M, Abe M
Radioisotopes. 1984 Apr;33(4):218-21. doi: 10.3769/radioisotopes.33.4_218.
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.
在一种锰钾矿型水合二氧化锰（CRYMO）离子交换剂上，发现钠 - 镁、钾 - 钙和铷 - 锶金属离子对的分离因子极大（大于10²）。使用CRYMO柱，Ca²⁺和Sr²⁺离子分别能从摩尔量为其一千倍的K⁺和Rb⁺离子中定量分离出来。这表明CRYMO有望用于从钾盐和铷盐靶中进行放射性镁和放射性锶的放射化学离子交换分离。
