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采取化学提取及层析分离，从植物桃耳七中分离出高纯度鬼臼毒素，并利用ＨＰＬＣ对其进行分析，测定结果证明产品中鬼臼毒素的含量不低于９８％ ，有关物质含量不超过２％ 。
Chemical extraction and chromatographic separation were used to isolate high-purity podophyllotoxin from the plant of Peach Seven and analyzed by HPLC. The results showed that the content of podophyllotoxin in the product was not less than 98%, and the content of related substances was not More than 2%.