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用薄层-紫外分光光度法测定了鹿衔草中2″-O-没食子酰基金丝桃甙的含量,结果为0.940%。
The content of 2′′-O-galloylated hypericin in P. elegans was determined by thin layer-ultraviolet spectrophotometry and the result was 0.940%.