Over 80% of PNS was eluted from macroporous resin.The purity of PNS was up to 71.1% in the dried part of 50% ethanolic elution.

• 结果表明:通过大孔树脂富集与纯化后三七总皂苷洗脱率达80%25以上,50%25乙醇洗脱液干燥后总固物中三七总皂苷纯度可达711%25。