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B. Wlodzimirska, B. Bartos, A. Bilewicz

Preparation of ²²⁵Ac and ²²⁸Ac generators using a cryptomelane manganese dioxide sorbent

The distribution coefficients of Ra²⁺ and Ac³⁺ on cryptomelane MnO₂ from acidic aqueous solutions were determined in order to find the best conditions for separation of both cations. Very high affinity of cryptomelane MnO₂ for Ra²⁺ ions make possible to separate ²²⁵Ac from ²²⁵Ra, and ²²⁸Ac from ²²⁸Ra in single-step and rapid procedure. The obtained results enable to design simple and effective generators of ²²⁵Ac and ²²⁸Ac from their mother radium isotopes.

Radiochimica Acta, Oldenbourg Wissenschaftsverlag

Print ISSN: 0033-8230
Volume: 91, 09/2003
Pages: 553

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