Using ion exchange resins for determination of uranium isotopic composition in industrial sulfate acidic solutions via alpha spectrometry

摘要

This work focuses on the development of a method for determination of activity ratio ~(234)U/~(238)U in uranium leach liquors using alpha spectrometry. High content of iron, aluminum and sodium was the main problem of these solutions that made impossible direct preparation of a thin alpha source. Anion exchange resin AMP was suggested for preconcentration and separation of uranium from untreated uranium leach liquors. Cation exchange resin KU-2 was suggested for decontamination of the uranium concentrates from ~(230)Th. Optimal time of uranium electrodeposition onto a stainless steel disk was found to be 40 - 60 minutes.