1965 Volume 29 Issue 6 Pages 525-532
Gamma irradiation has been found to induce a remarkable bactericidal activity in an aqueous soltion of p-bromophenol even at the non-toxic lower concentrations, but not in a crystalline form or under a frozen state. Effects of concentration of reagents, temperature, pH, radiation dose, oxygen and some additives during irradiation on the radiation induction of bactericidal activity in the p-bromophenol solution were investigated. The results suggest that the induced activity is attributable to some long-life products, formed as a result of radiolysis of p-bromophenol and in coupling with radiolysis of water. The processes of formation and destruction of such bactericidal factor(s) were considerably influenced by several conditions during irradiation. Based on the experimental results, relationship between radiolysis process and induction of bactericidal activity was discussed.
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