高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (8): 1295.

• 论文 • 上一篇    下一篇

荧光探针法测定甜菜碱cmc的研究

任学贞, 李干佐, 王弘立, 翟立民, 隋卫平, 徐欣艳   

  1. 山东大学化学系, 济南, 250100
  • 收稿日期:1994-11-09 修回日期:1995-04-28 出版日期:1995-08-24 发布日期:1995-08-24
  • 通讯作者: 任学贞,男,31岁,讲师.
  • 作者简介:任学贞,男,31岁,讲师.
  • 基金资助:

    国家自然科学基金

Studies on the Critical Micelle Concentration of N-Alkylbetaines by Fluorescence Probe

REN Xue-Zhen, LI Gan-Zuo, WANG Hong-Li, ZHAI Li-Min, SUI Wei-Pin, XU Xin-Yan   

  1. Department of Chemistry, Shandong Univeristy, Jinan, 250100
  • Received:1994-11-09 Revised:1995-04-28 Online:1995-08-24 Published:1995-08-24

关键词: 甜菜碱, 芘, 临界胶束浓度

Abstract: The fluorescence characteristics of I5/I1and I3/I1of pyrene which is sensitive to the environment of probe was used to study the critical micelle concentration(cmc)of N-dodecylbetaine and N-tetradecylbetaine.The effect of salt concentration on the cmc values was studied.The results obtained indicate that cmc values determined from the parameters I5/I1of pyrene are close to that from the surface tension measurements,and more accurate than that from I3/I1.

Key words: Betaine, Pyrene, Critical micelle concentration

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