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用电子自旋共振方法研究了二甲基亚砜体系产生Ｏ－２的反应过程中黄芪提取液对Ｏ－２的抑制效应。结果表明，黄芪对该体系中产生的Ｏ－２有很强的清除作用。
The electron-spin resonance method was used to study the inhibitory effect of Astragalus membranaceus extract on O-2 in the reaction of dimethyl sulfoxide system producing O-2. The results showed that Astragalus has a strong scavenging effect on O-2 produced in the system.