高等学校化学学报 ›› 1992, Vol. 13 ›› Issue (4): 433.

• 论文 • 上一篇    下一篇

冠醚配合物的研究(ⅩⅠⅤ)——2,3-苯并-11-甲基-18-冠-6液膜模拟细胞膜传输钾离子的研究

王志林, 沈孟长, 罗勤慧   

  1. 南京大学化学系, 南京, 210008
  • 收稿日期:1991-06-25 出版日期:1992-04-24 发布日期:1992-04-24
  • 通讯作者: 罗勤慧
  • 基金资助:

    国家自然科学基金

Studies on Crown Ether Coordination Compounds (ⅩⅣ)——The Transport of Potassium Ions by 2,3-Benzo-11-Methyl-18-Crown-6 Liquid-Membrane-Mimicking Cell Membranes

WANG Zhi-Iin, SHEN Meng-chang, LUO Qin-hui   

  1. Department of Chemistry, Nanjing University, Nanjing, 210008
  • Received:1991-06-25 Online:1992-04-24 Published:1992-04-24

摘要: 以2,3-苯并-11-甲基-18-冠-6(BCl-18C6)为液膜载体研究其对钾离子的传输,金属离子可以逆其浓度梯度进行跨膜传输。当源相金属离子浓度和膜相载体浓度相近时,传输为串联一级反应,传输速率正比于源相及受相阴、阳离子浓度乘积之差。同时讨论了搅拌速度对传输的影响,探讨了传输机理。

关键词: 冠醚, 钾离子, 液膜, 传输速率, 模拟

Abstract: Liquid membranes containing 2,3-benzo-ll-methyl-18-crown-6(BCl-18C6) is able to transport metal ions against their concentration gradient.The migration of metal ions is a consecutive first order process when the concentrations of metal ions in source phase and of carriers in membrane phase are comparable, the transport rate is proportional to the difference between the product of cation and anion concentrations in source phase and that in receiving phase.The influence of stirring rate on the transport mechanism was considered.

Key words: Crown ether, Potassium ions, Liquid membrane, Transport rate, Mimicking

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