Thiacalixarenes: radiation stability and Eu/Am extraction in synergistic systems with COSANs

  • I. Špendlíková
  • J. John
  • V. Čuba
  • J. Jirásek
  • P. Lhoták
Article

Abstract

The radiation stability of thiacalixarenes was not studied systematically, yet. This paper focuses on the stability of two thiacalix[4]arene molecules dissolved in 1,2-dichloroethane or cyclohexanone towards irradiation from 60Co source or linear electron accelerator. The determination of thiacalixarene residual concentration using HPLC method was compared with the assessment of the change in the extraction efficiency, i.e. the change of the distribution ratios of americium and europium in solvent extraction experiments with COSAN molecules. Extraction properties of synergistic mixtures containing irradiated and non-irradiated thiacalixarenes were compared. It was shown that irradiation significantly negatively influences extraction properties of the mixtures.

Keywords

Thiacalix[4]arenes Radiolysis Extraction behaviour COSAN 

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2014

Authors and Affiliations

  • I. Špendlíková
    • 1
  • J. John
    • 1
  • V. Čuba
    • 1
  • J. Jirásek
    • 2
  • P. Lhoták
    • 2
  1. 1.Department of Nuclear Chemistry, Faculty of Nuclear Sciences and Physical EngineeringCzech Technical University in PraguePraha 1Czech Republic
  2. 2.Department of Organic ChemistryInstitute of Chemical Technology PraguePraha 6Czech Republic

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