依上述方法，银杏叶中有效成分异鼠李素提取率可达96.77%。

With the methods, the extraction rate of the effective component isorhamnetin in ginkgo leaves can reach 96.77 percent.

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目的研究异鼠李素对人肺癌YTLMC-90细胞的抑制作用并探讨其作用机制。

Objective To study the inhibitory effect of isorhmnetin on human lung tumor YTLMC-90 cells and to elucidate its molecular mechanisms.

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建立了HPLC法测定蒲黄总黄酮提取物中香蒲新苷（1）及异鼠李素-3-O-新橙皮糖苷（2）的含量。

HPLC method with gradient elution for determination of typhaneoside(1) and isorhamnetin-3-O-neohesperidoside(2) in total flavonoid extracts of Pollen typhae was established.

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