Journal of Radioanalytical and Nuclear Chemistry

, Volume 242, Issue 1, pp 215–218 | Cite as

Separation of lithium isotopes by NDOE bonded Merrifield peptide resin

  • D. W. Kim
  • J. S. Kim
  • J. S. Jeon
  • H. J. Kim
  • N. S. Lee
Letter to the Editor


The novel NDOE (1,12,15-triaza-3,4:9,10-dibenzo-5,8-dioxacycloheptadecane) ion exchange resin was prepared. The ion exchange capacity of NDOE azacrown ion exchanger was 0.2 meq/g dry resin. A study on the separation of lithium isotopes was carried out with NDOE novel azacrown ion exchange resin. The lighter isotope,6Li concentrated in the solution phase, while the heavier isotope,7Li is enriched in the resin phase. By column chromatography (0.1 cm I.D.×32 cm height) using 2.0M NH4Cl as an eluent, a separation factor,a=1.0201 was obtained.


Peptide Chromatography Physical Chemistry Lithium Inorganic Chemistry 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. 1.
    C. J. Pedersen, J. Amer. Chem. Soc., 89 (1967) 2495.Google Scholar
  2. 2.
    W. Simon, W. E. Morf, O. C. Meier, Structure and Bonding, Vol. 16, Springer Verlag, 1973, p. 113.Google Scholar
  3. 3.
    Y. Kobuku, Crown Ether, Nokabuku, in:R. Oda, T. Shono, I. Tabush (Eds), Kagaku Zokan, Kagaku-Dojin, Kyoto, 1978, p. 74, (in Japanese).Google Scholar
  4. 4.
    J. S. Bradshaw, B. A. Jones, R. B. Davidson, J. J. Christensen, J. D. Lamb, R. M. Izatt, F. G. Morin, D. M. Grant, J. Org. Chem., 47 (1982) 3362.Google Scholar
  5. 5.
    B. E. Jepson, W. F. Evans, Separ. Sci. Technol., 22 (1987) 1029.Google Scholar
  6. 6.
    B. E. Jepson, R. De Witt, J. Inorg. Nucl. Chem., 38 (1976) 1175.CrossRefGoogle Scholar
  7. 7.
    B. E. Jepson, G. A. Carins, Report MLM-2622, 1979.Google Scholar
  8. 8.
    H. Araki, M. Umeda, Y. Enokida, I. Yamamoto, Fusion Eng. Design, 39 (1998) 1009.Google Scholar
  9. 9.
    M. Ohwaki, Y. Fujii, K. Morita, K. Takeda, Separ. Sci. Technol., 33 (1998) 19.Google Scholar
  10. 10.
    K. Nishizawa, H. Watanabe, S. Ishino, M. Shinagawa, J. Nucl. Sci. Technol., 21 (1984) 133.Google Scholar
  11. 11.
    D. W. Kim, Y. S. Jeon, T. Y. Eom, M. Y. Suh, C. H. Lee, J. Radioanal. Nucl. Chem., 150 (1991) 417.Google Scholar
  12. 12.
    D. W. Kim, Y. S. Jeon, Y. K. Jeong, M. Y. Suh, K. S. Joe, J. Radioanal. Nucl. Chem., 189 (1995) 219.Google Scholar
  13. 13.
    L. F. Lindoy, J. T. Baker, Aust. J. Chem., 30 (1977) 2095.Google Scholar
  14. 14.
    K. Dorfner, Ionenaustauscher, Dritte Aufl. Walter de Gruyter, Berlin, 1970, p. 47.Google Scholar
  15. 15.
    K. Dorfner, Ionenaustauscher, Dritte Aufl. Walter de Gruyter, Berlin, 1970, p. 292.Google Scholar
  16. 16.
    E. Glueckauf, Trans. Faraday Soc., 54 (1858) 1203.Google Scholar
  17. 17.
    K. G. Heumann, H. P. Schiefer, Angew. Chem. Intern. Ed. Engl., 19 (1980) 406.CrossRefGoogle Scholar
  18. 18.
    W. A. Russell, D. A. Papanastassiou, Anal. Chem., 50 (1978) 1151.CrossRefGoogle Scholar
  19. 19.
    B. E. Jepson, G. C. Shockey, Separ. Sci. Technol., 19 (1984) 173.Google Scholar
  20. 20.
    N. Kobayashi, Y. Fujii, M. Okamoto, H. Kakihana, Bull. Res. Lab. Nucl. Reactors, 5 (1980) 19.Google Scholar
  21. 21.
    T. Oi, K. Kawada, M. Hosoe, H. Kakihana, Separ. Sci. Technol., 26 (1991) 1353.Google Scholar
  22. 22.
    G. D. Klinskii, D. A. Knyazev, G. I. Vlasova, Zh. Fiz. Khim., 48 (1974) 659.Google Scholar
  23. 23.
    K. Nishizawa, H. Watanabe, S. Ishino, M. Shinagawa, J. Nucl. Sci. Technol., 21 (1984) 133.Google Scholar
  24. 24.
    D. W. Kim, C. P. Hong, C. S. Kim, Y. K. Jeong, Y. S. Jeon, J. K. Lee, J. Radioanal. Nucl. Chem., 220 (1997) 229.CrossRefGoogle Scholar

Copyright information

© Akadémiai Kiadó 1999

Authors and Affiliations

  • D. W. Kim
    • 1
  • J. S. Kim
    • 2
  • J. S. Jeon
    • 1
  • H. J. Kim
    • 1
  • N. S. Lee
    • 1
  1. 1.Department of Chemistry, Physical Chemistry Laboratory, College of Natural SciencesChungbuk National UniversityCheongjuKorea
  2. 2.Department of ChemistryKonyang UniversityNonsanKorea

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