Czechoslovak Journal of Physics

, Volume 49, Supplement 1, pp 731–738 | Cite as

Extraction of selected organic bases by bis 1,2-dicarbollylcobaltate anion from water into chloroform

  • O. Navrátil
  • Z. Skaličan
  • Z. Kobliha
  • E. Halámek
Separation Methods, Speciation


Bis-1,2-dicarbollylcobaltate anion, labelled by 60Co, forms ionic associates with cations of some organic bases and quaternary salts, especially those causing psychic effect on human organism. Their stability and partition between aqueous 0,1 mol. L−1 HCl and chloroform were investigated radiometrically. A method of competitive extraction was proposed for some anions of dyes which were so far used for extraction-spectrophotometric determination of some bases.


Physostigmine Ionic Associate Quaternary Salt Arecoline Bromothymol Blue 
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Copyright information

© Institute of Physics, Acad. Sci. CR 1999

Authors and Affiliations

  • O. Navrátil
    • 1
  • Z. Skaličan
    • 1
  • Z. Kobliha
    • 1
  • E. Halámek
    • 1
  1. 1.Department of ChemistryMilitary UniversityVyškovCzech Republic

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