Radiolysis of purines and pyrimidines aqueous solutions

Abstract EN

The γ-radiolysis of purines and pyrimidines N2O- saturated aqueous solutions in the presence of either tetranitromethane (TNM) or N,N,N",N"- tetramethyl-P-phenylenediamine (TMPD) has provided information on the yield of both reducing and oxidizing radicals and followed by measurements of G(-chromophore) under various experimental conditions.

The observed yields are attributed to the hydrolysis of intermediate products which can be both base- and acid-catalysed.

G(-chromophore) has also been measured.

The addition of Cu+ or Cu+ / H2O2 enhances the yields, in the later case by a chain mechanism.