Measurement of free ammonia produced by X irradiation of glycylglycine in aqueous solution
- Oak Ridge National Lab., TN (USA)
This research was initiated to test the validity of predictions based on Monte Carlo calculations of the effect of ionizing radiation on a simple dipeptide. The mechanism for the formation of ammonia, proposed by Garrison, Sokol, and Bennett-Corniea, was reevaluated by measuring the yields under deoxygenated and oxygenated conditions. Although free ammonia was formed under both conditions, the yields were different, depending on the concentrations of solute and molecular oxygen. The reaction probabilities of the specific interactions of free radicals formed in pure water with solute and oxygen are discussed to account for the observed difference. Our results obtained after low-dose-rate X irradiation are compared with those obtained by Garrison et al. after high-dose-rate 60Co gamma irradiation.
- OSTI ID:
- 6968329
- Journal Information:
- Radiation Research; (USA), Vol. 121:3; ISSN 0033-7587
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
AMMONIA
BIOSYNTHESIS
GLYCYLGLYCINE
RADIATION EFFECTS
AQUEOUS SOLUTIONS
COBALT 60
COMPARATIVE EVALUATIONS
NUCLEOTIDES
PROBABILITY
RADIOCHEMISTRY
X RADIATION
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHEMISTRY
COBALT ISOTOPES
DISPERSIONS
ELECTROMAGNETIC RADIATION
HYDRIDES
HYDROGEN COMPOUNDS
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IONIZING RADIATIONS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MINUTES LIVING RADIOISOTOPES
MIXTURES
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NUCLEI
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
PEPTIDES
PROTEINS
RADIATIONS
RADIOISOTOPES
SOLUTIONS
SYNTHESIS
YEARS LIVING RADIOISOT
560120* - Radiation Effects on Biochemicals
Cells
& Tissue Culture