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23 天
佛手的化学成分研究
干燥佛手粗粉17 kg ,用180 L 的95% 乙醇渗漉提取3 次,合并提取液,减压回收得总浸膏2.8 kg 。将总浸膏均匀混悬于水中,依次用石油醚、醋酸乙酯、正丁醇萃取,减压浓缩后得到石油醚部位浸膏(346.5 g )、醋酸乙酯部位浸膏(205.0 g )、正丁醇部位浸膏(381.2 g ...
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