A procedure for the separation of79Se from fission products and application to the determination of the79Se half-life

  • Li Chunsheng
  • Guo Jingru
  • Li Daming


This paper presents a radiochemical separation procedure of79Se from high level liquid radioactive waste, with nitrobenzene extraction and with sulfur dioxide precipitation. The procedure gives a chemical yield of selenium greater than 60%, and satisfactory decontamination is observed for all the relevant radioactive nuclides. Liquid scintillation counting were used for the measurement of79Se radioactivity. The79Se samples obtained from the procedure were used successfully in79Se half-life detemination.


Precipitation Sulfur Dioxide Selenium Sulfur Dioxide 
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Copyright information

© Akadémiai Kiadó 1997

Authors and Affiliations

  • Li Chunsheng
    • 1
  • Guo Jingru
    • 1
  • Li Daming
    • 1
  1. 1.China Institute of Atomic EnergyBeijingP.R. China

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