STUDY ON THE REACTION OF FERRYL RADICAL WITHLINOLEIC ACID
高铁离子自由基与亚油酸反应的初步研究

The reaction of ferryl radical with spin-trap,POBN,was studied using stopped-flow spectrophotometer and ESR method. It was found that the ferryl radical alomost did not react with POBN,but a ESR signel from POBN-OH was obserVed.The trapped OH radical may come from the decay product of the ferryl radical,or from the reaction of the residual Fenton regent which is not completely consumed during the 10ms the delay between the frist mixing and the fmal mixing.The reactivity of ferryl radical towards linoleic acid was determined.The ESR measurement showed that the lipid radical were trapped by POBN in the reaction mixture of ferryl radical and linoleic acid. The results indicate that the ferryl radical migth be able to initiate the lipid peroxidation.