【摘要】 采用电子自旋共振和自旋捕集技术，观察药用鼠尾草丹参二萜醌类化合物及其它中草药中有关单体化合物对Ｆｅｎｔｅｎ 反应产生的羟自由基的清除效能。结果表明，试验浓度的二萜醌类化合物对羟自由基有不同程度的清除作用，其中对醌类的抑制作用强于邻醌类。含多羟基醌类化合物具有较强的清除效能，分子中的羟基对消除自由基有促进作用。在一定浓度范围内，隐丹参酮对羟自由基有较好的清除作用。更多还原

【Abstract】 With the use of the spin trapping methods, the scavenging effects of diterpenoid tanshinones from the roots of Salvia Przewalskii and smoe related pigments from Chinese traditional herbs are studied. In Fenten Reaction, Diterpenoid tanshnones have the different scavenging effect (53%~82%), para quinones have the stronger scavenging effects than ortho quinones. The hydroxyl radical in the molecular bone has been proved as the inhibition group on OH. The relationship between the compound structure and scavenging the free radical activities was also discussed.更多还原