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  • 1 Technical University of Prague Department of Nuclear Chemistry, Faculty of Nuclear Science and Physical Engineering Břehová 7 115 19 Prague 1 (Czechoslovakia)
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The determination of uranium in solutions and sorbents by measurement of absorption of soft gamma-rays is described. The use of 22 keV gamma-rays of109Cd enbled us to improve the sensitivity of the determination for nearly an order of magnitude when compared to the measurements using241Am source. The application to the continuous measurement of uranium concentration in pilot-plant streams and of concentration profiles of uranium sorbed on columns of ion exchangers is described.