The root powder of Stephania tetrandras was diffused with 0.6% H2SO4 solution and the diffusion passed through D72 resin column.
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美
- 粉防己根粉用0.;6%25稀硫酸渗滤;提取液通过D72树脂柱;然后用氨水乙醇溶液洗脱;丙酮、甲苯结晶纯化得到粉防己碱纯品。