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Separation of 153Sm from other rare-earth radionuclides present in neutron-irradiated samarium oxide target using polymeric resin

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Abstract

The polymeric resin (acrylic acid-acrylonitrile)-methylenediacrylamide P(AA-AN)-DAM was prepared by free radical polymerization induced by γ-irradiation to a dose of 20 kGy (dose rate 5 kGy h−1). 153Sm was separated from rare-earth radionulides (154,155Eu) using the synthesized polymeric resin P(AA-AN)-DAM as a cation exchanger. The distribution behavior of 153Sm and 154,155Eu from HCl or succinic acid in the presence of 0.8 M ascorbic acid solutions on P(AA-AN)-DAM was studied by batch technique to optimize the separation process that could be applied by the column chromatographic technique. Both 154,155Eu and 153Sm were strongly absorbed from 0.01 M HCl onto the P(AA-AN)-DAM column. 1 M succinic acid in the presence of ascorbic acid (0.08 M) directly eluted the absorbed 154,155Eu, which was followed by the 153Sm elution using 0.5 M HCl at a flow rate of 1 ml min−1. The radionuclidic purity and the radiochemical purity of 153Sm were determined: ∼98 and 97% respectively.

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Authors and Affiliations

  1. Hot Laboratories Center, Atomic Energy Authority, P.O. code 13759, Cairo, Egypt

    K. F. Allan, K. M. El-Azony & A. A. El-Mohty

Authors
  1. K. F. Allan
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  2. K. M. El-Azony
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  3. A. A. El-Mohty
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Additional information

Published in Russian in Radiokhimiya, 2009, Vol. 51, No. 5, pp. 439–442.

The text was submitted by the authors in English.

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Allan, K.F., El-Azony, K.M. & El-Mohty, A.A. Separation of 153Sm from other rare-earth radionuclides present in neutron-irradiated samarium oxide target using polymeric resin. Radiochemistry 51, 502–506 (2009). https://doi.org/10.1134/S1066362209050117

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  • DOI: https://doi.org/10.1134/S1066362209050117

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