Ion-Pair Extraction of Cs Radionuclides by Dicyclohexyl-24-crown-8 and Tetraphenylborate for Their Determination in Reactor Coolant

Dicyclohexyl-24-crown-8과 Tetraphenylborate에 의한 원자로 냉각수로부터 세슘 핵종의 이온쌍 용매추출

  • Ihn-Chong Lee (Reactor Chemistry Division, Korea Advanced Energy Research Institute) ;
  • Si-Joong Kim (Department of Chemistry, Korea University) ;
  • Chul Lee (Department of Chemistry, Hangyang University)
  • 이인종 (한국에너지기술연구원 원자로화학연구실) ;
  • 김시중 (고려대학교 이과대학 화학과) ;
  • 이철 (한양대학교 이과대학 화학과)
  • Published : 1983.08.20


A study has been carried out for a scheme of the selective extraction and determination of cesium, sodium and nuclides by the ion association with dicyclohexyl-24-crown-8 and sodium tetraphenylborate from primary coolant of a pressurized water reactor. For that purpose, the effects of hydrogen, cesium and borate ions on the extraction have been investigated. Interferences of iodine and xenon nuclides were found but could be removed by reducing with sodium thiosulfate and back extraction with 1 N hydrochloric acid solution, respectively.



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