高等学校化学学报

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基于离子交换树脂制备多孔氧化铝球及在非水体系中分离银杏内酯

任萍, 王木立, 武春密, 施荣富, 王春红, 王维   

  1. 南开大学功能高分子材料教育部重点实验室, 高分子化学研究所, 天津 300071
  • 收稿日期:2007-10-10 修回日期:1900-01-01 出版日期:2008-03-10 发布日期:2008-03-10
  • 通讯作者: 王春红, 王维

Preparation of Porous Alumina from Ion-exchange Resins and Separation of Terpene Lactones in the Extract of Ginkgo biloba Leaves

REN Ping, WANG Mu-Li, WU Chun-Mi, WANG Chun-Hong*, WANG Wei*   

  1. Key Laboratory of Functional Polymer Materials, Ministry of Education, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, China
  • Received:2007-10-10 Revised:1900-01-01 Online:2008-03-10 Published:2008-03-10
  • Contact: WANG Chun-Hong, WANG Wei

摘要: 以磺酸型大孔离子交换树脂D072为模板, 设计合成了球形的多孔氧化铝, 利用XRD、SEM和氮气吸附仪对其结构进行了表征. 以这种球形多孔氧化铝作为分离材料, 考察了其在非水体系中对银杏黄酮和银杏内酯的吸附选择性, 在最佳分离条件下, 制备了纯度为58.5%, 且不含任何黄酮的银杏内酯. 利用红外光谱法证明了吸附机理为配位吸附.

关键词: 黄酮, 内酯, 氧化铝, 离子交换树脂

Abstract: A method for preparing porous alumina beads using a cation exchange resin with sulfonic acid groups as templates was reported. And the beads were characterized by using XRD, SEM and BET method . The adsorption selectivity of the beads towards flavonol glycosides and terpene lactones was discussed, and adsorption mechanism was investigated by FTIR. The beads were used to separate terpene lactones from the extract of Ginkgo biloba leaves. And the purity of terpene lactones in the product was 58.5%, furthermore, there were no flavonol glycosides in it.

Key words: Flavonol glycoside, Terpene lactone, Alumina, Ion-exchange resin

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