ANTIOXIDANT ROLE OR AMINOGUANIDINE SUBMIT TED TO THE ACTION OF OH-CENTER-DOT AND O-2(CENTER-DOT-) FREE-RADICALS PRODUCED BY GAMMA-RADIOLYSIS OF WATER

Authors
LISFI D JORE D BONNEFONTROUSSELOT D DELATTRE J BELAARAJ A GARDESALBERT M
Citation
D. Lisfi et al., ANTIOXIDANT ROLE OR AMINOGUANIDINE SUBMIT TED TO THE ACTION OF OH-CENTER-DOT AND O-2(CENTER-DOT-) FREE-RADICALS PRODUCED BY GAMMA-RADIOLYSIS OF WATER, Journal de chimie physique et de physico-chimie biologique, 94(2), 1997, pp. 283-288
Citations number
8
Categorie Soggetti
Biology,"Chemistry Physical
Journal title
Journal de chimie physique et de physico-chimie biologique → ACNP
Volume
94
Issue
2
Year of publication
1997
Pages
283 - 288
Database
ISI
SICI code
Abstract
Aqueous aerated solutions of aminoguanidine (AMG) of concentrations [A MG](0) varying from 10(-5) to 6x10(-4) M have been submitted to the ac tion of OH. and O-2(.-) free radicals produced by gamma radiolysis of water. The evolution of the disappearance yield of AMG, G(-AMG), versu s AMG concentration has been determined. The G-value obtained for the plateau of the dilution curve, is equal to 2.2x10(-7) mol/J. Several h ypothesis involving in addition to the action of OH. free radicals, th ese of O-2(.-) free radicals and/or of hydrogen peroxyde are discussed .