Abstract
IN recent studies of the effects of ionizing radiations on aqueous solutions of compounds containing amino-groups such as, for example, amino-acids1, adenine2, nucleic acids2,3, it has been shown that, among other changes, ammonia is formed. In the case of the nucleic acids, for example, the ammonia arises from the constituent purine and pyrimidine bases as a result of a deamination process involving the radicals OH and HO2, which are formed in the primary radiation process according to4: 
which in the presence of oxygen is followed by: H + O2 → HO2.
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References
Stein, G., and Weiss, J., Nature, 162, 814 (1948); J. Chem. Soc., 3256 (1949). Dale, W. M., and Davis, J. V., Nature, 163, 64 (1949). Dale, W. M., Davis, J. V., and Gilbert, C. W., Biochem. J., 45, 93 (1949).
Scholes, G., and Weiss, J., Nature, 166, 640 (1950).
Scholes, G., Stein, G., and Weiss, J., Nature, 164, 709 (1949).
Weiss, J., Nature, 153, 748 (1944); Trans. Farad. Soc., 43, 314 (1947).
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SCHOLES, G., WEISS, J. Formation of Hydroxylamine from Amino-Compounds in Aqueous Solution by Irradiation with X-Rays. Nature 167, 693 (1951). https://doi.org/10.1038/167693b0
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DOI: https://doi.org/10.1038/167693b0
