Journal of Radioanalytical and Nuclear Chemistry

, Volume 262, Issue 3, pp 697–701 | Cite as

Separation of strontium-90 and yttrium-90 in the presence of thorium-234 by dynamic ion chromatography

  • E. H. Borai
  • E. A. El-Sofany


A relatively rapid (<20 min) technique is described for the analysis of 90Sr and 90Y in the presence of 234Th. The method joins ion-chromatography and on-line scintillation detection. Experiments were performed to characterize separation of the three radionuclides in an Ion Pac CS5 ion-exchange column under the influence of the following eluents: oxalic acid, diglycolic acid (DGA), α-hydroxy isobuteric acid (HIBA), and a mixture of hydrochloric acid and ammonium sulfate. Ammonium sulfate was the most effective of the eluents tested, yielding a resolution of 2.04 for strontium/yttrium and 1.03 for strontium/thorium. Within the limits of experimental uncertainty, the recoveries were quantitative for 90Sr and 90Y in the presence of 17 to 262 Bq. ml of 234 Th.1


Oxalic Acid Ammonium Sulfate Lithium Hydroxide Liquid Scintillation Detector 234Th Concentration 
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Copyright information

© Kluwer Academic Publisher/Akadémiai Kiadó 2004

Authors and Affiliations

  • E. H. Borai
    • 1
  • E. A. El-Sofany
    • 1
  1. 1.Hot Laboratories CenterAtomic Energy AuthorityCairoEgypt E-mail

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