Journal of Radioanalytical Chemistry

, Volume 21, Issue 1, pp 151–155 | Cite as

A generator for preparation of carrier-free224Ra

  • F. Šebesta
  • J. Starý
Solvent Extraction Chemistry

Abstract

The construction of a dynamic generator for the separation of carrier-free224Ra is described. The mother228Th was extracted on the top of the column with di-(2-ethylhexyl)phosphoric acid on hydrophobized Chromosorb W DMCS. The function of the generator was checked during 6 months by measuring the decontamination of224Ra from228Th. Simultaneously the yield of224Ra was determined as a function of the HCl concentration and of the means of milking. The best results were obtained with 0.01–0.1M HCl; the yield was about 75% of the theoretical value, and the224Ra contained less than 0.01% of228Th.

Keywords

Thorium Kieselguhr Separation Factor Glass Wool Dynamic Generator 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    K. H. König, F. Hoyer, Atompraxis, 11 (1965) 275.Google Scholar
  2. 2.
    J. Rajtora, I. Malátová, Radiochem. Radioanal. Letters, 6 (1971) 227.Google Scholar
  3. 3.
    J. Starý, Extrakcija Chelatov, Mir, Moscow, 1966.Google Scholar
  4. 4.
    D. F. Peppard, G. W. Mason, S. McCarty, J. Inorg. Nucl. Chem., 13 (1960) 138.CrossRefGoogle Scholar
  5. 5.
    Z. Kolařík, H. Pánková, J. Inorg. Nucl. Chem., 28 (1966) 2325.CrossRefGoogle Scholar

Copyright information

© Akadémiai Kiadó 1974

Authors and Affiliations

  • F. Šebesta
    • 1
  • J. Starý
    • 1
  1. 1.Department of Nuclear ChemistryTechnical University of PraguePragueCzechoslovakia

Personalised recommendations