Journal of Radioanalytical and Nuclear Chemistry

, Volume 96, Issue 4, pp 363–372 | Cite as

Radiolysis of aqueous oxygen-free solutions of tryptophan at various pH values

  • J. Kopoldová
  • V. Vlasáková
  • M. Weingart


Gamma radiolysis of 10−2M aqueous oxygen-free tryptophan solutions irradiated at various pH values and in a N2O atmosphere was investigated. The values of the radiation losses of tryptophan and the yields of NH3 were determined. Using HPLC with an electrochemical detector the formation of hydroxylated radiation products of tryptophan was followed and the effect of pH on the radiolysis course discussed.


Radiation Atmosphere Physical Chemistry HPLC 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.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    A. Singh, M. J. Bell, G. W. Koroll, W. Kremers, H. Singh, Oxygen and Oxy-Radicals in Chemistry and Biology /Ed. by M. A. J. Rodgers and E. L. Powers/, Academic Press, New York, 1981, 461.Google Scholar
  2. 2.
    A. Singh, S. A. Antonsen, G. W. Koroll, W. Kremers, H. Singh, Oxygen Radicals in Chemistry and Biology /Ed. by W. Bors, M. Saran, D. Tait/, Walter de Gruyter and Co., Berlin-New York, 1984, 491.Google Scholar
  3. 3.
    J. Kopoldová, Š. Hrnčíř,Z. Naturforsch., 32c /1977/ 482.Google Scholar
  4. 4.
    J. Kopoldová, M. Voráček-Hübsch,Z. Naturforsch., 30c /1975/ 474.Google Scholar
  5. 5.
    R. C. Armstrong, A. J. Swallow,Rad. Res., 40 /1969/ 563.Google Scholar
  6. 6.
    S. Jovanović, L. Josimović, Proc. 5th Tihany Symposium on Radiation Chemistry, 1982.Google Scholar
  7. 7.
    K. Štulík, V. Pacáková, V. Vlasáková, M. Weingart,J. Chromatogr. /in press/.Google Scholar
  8. 8.
    E. J. Conway, A. Berne,Biochem. J., 27, /1933/ 419.Google Scholar
  9. 9.
    J. Liebster, J. Kopoldová, Advances in Radiation Biology /Ed. by L. G. Augenstein, R. Mason, H. Quastler/, Academic Press, New York-London, 1964, 157.Google Scholar

Copyright information

© Akadémiai Kiadó 1985

Authors and Affiliations

  • J. Kopoldová
    • 1
  • V. Vlasáková
    • 1
  • M. Weingart
    • 2
  1. 1.Institute of Nuclear Biology and RadiochemistryCzechoslovak Academy of SciencesPragueCzechoslovakia
  2. 2.Department of Analytical Chemistry, Faculty of ScienceCharles UniversityPragueCzechoslovakia

Personalised recommendations