荧光动力学分析法测定5种酮清除超氧自由基和羟基自由基的活性  

Fluorescent kinetic analysis measurement of antioxidant properties of five xanthones against on superoxide and hydroxyl radicals

作　　者：赫春香[1] 王杨[1] 曹璨[1] 王世盛[2] 

机构地区：[1]辽宁师范大学化学化工学院,辽宁大连116029 [2]中国科学院大连化学物理研究所,辽宁大连116023

出　　处：《高师理科学刊》2005年第4期28-31,共4页Journal of Science of Teachers＇College and University

摘　　要：利用荧光动力学分析法研究了5种酮化合物对超氧自由基(O2.-)和羟基自由基(.OH)的清除作用.利用邻苯三酚自氧化产生O2.-;利用Fenton反应产生.OH,向这2个反应体系中分别加入5种口山酮化合物,O2.-和.OH的产生速率明显降低.说明5种酮化合物对和有较强的抑制作用.探讨了酮化合物的结构与其抗氧活性的关系.The scavenging effects of five xanthones on superoxide radicals （ O2^τ ） and hydroxyl radicals （ · OH） has been studied by fluorescent kinetic analysis. The O2^τ were produced by autoxidadon of pyrogallol and · OH were produced by the reaction of fenton, five xanthones was added to the two system solu- tions, the produced rate of O2^τ and · OH was reduced. Results showed five xanthones have the scavenging effects on O2^τ and · OH The relations between structure of xanthones and its andoxidadve activities has been explored.

关 键 词：[口山]酮 超氧自由基 羟基自由基 荧光动力学分析法 

分 类 号：O657.3[理学—分析化学]