Separation of Ruthenium and Molybdenum by Cation Exchange Chromatography on Ag 50W-X4 in a Nitric Acid-Ethylenediamine Mixture

  • T. N. van der Walt
  • P. J. Fourie
  • P. P. Coetzee


The 99Mo-99Tc-generator is widely used in nuclear medicine. 99Mo can be obtained from the fission of 235U in a nuclear reactor. 103Ru is one of the numerous fission products to be separated from 99Mo. 103Ru can easily be separated from 99Mo by cation exchange chromatography on AG 50W-X4 in a nitric acid- ethylenediamine mixture. Ruthenium is sorted as a positively charged ruthenium-ethylenediamine complex from a mixture containing 0,10M nitric acid and 0,01M ethylenediamine or 1,0M nitric acid and 0,10M ethylenediamine. Molybdenum passes through the resin column and can be separated from the ethylenediamine by ion exchange chromatography on aluminium oxide or manganese dioxide.


Manganese Dioxide Elution Curve Sodium Molybdate Hydrobromic Acid Cation Exchange Chromatography 
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Copyright information

© Elsevier Science Publisher LTD and United Kingdom Atomic Energy Authority 1990

Authors and Affiliations

  • T. N. van der Walt
    • 1
  • P. J. Fourie
    • 1
  • P. P. Coetzee
    • 2
  1. 1.Isotope Production CentreAtomic Energy Corporation of South Africa Ltd.PretoriaRepublic of South Africa
  2. 2.Department of ChemistryRand Afrikaans UniversityJohannesburgRepublic of South Africa

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