高等学校化学学报

高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (11): 1694.

• 研究简报 • 上一篇    下一篇

离子型β-CD对Zn(Ⅱ)-桑色素荧光体系作用的研究及应用

朱利中, 戚志红, 金辉, 戚文彬   

  1. 杭州大学环境科学系, 杭州, 310028
  • 收稿日期:1994-11-01 修回日期:1995-04-30 出版日期:1995-11-24 发布日期:1995-11-24
  • 通讯作者: 朱利中,男,36岁,教授.
  • 作者简介:朱利中,男,36岁,教授.
  • 基金资助:

    浙江省自然科学基金

Enhancement of the Fluorescence of Zn(Ⅱ)-Morin Complex by Ionic β-Cyclodextrins and Its Analytical Application

ZHU Li-Zhong, QI Zhi-Hong, JIN Hui, QI Wen-Bin   

  1. Department of Environmental Science, Hangzhou University, Hangzhou, 310028
  • Received:1994-11-01 Revised:1995-04-30 Online:1995-11-24 Published:1995-11-24

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关键词: 锌, 桑色素, 离子型&beta, -环糊精, 荧光分析法

Abstract: The effects of three ionic chemical modified β-cyclodextrins, hydroxypropyltrimethylamine β-CD(QA-β-CD),diethylaminoethyl β-CD(TA-β-CD)and carboxymethylβ-CD(CM-β-CD)on Zn(Ⅱ)-Morin fluorescence system were studied comparatively with β-cyclodextrin(β-CD).Amechanistic investigation has been conducted by using pyrene as the probe molecule for the media polarity changes in its surrounding microenvironment.The different effects of various CDs or CD-surfactant mixture on Zn(Ⅱ)-Morin system have been interpreted in terms of formation and geometric compatibility of multicomponent complex,fluorescence quantum yield ratio of fluorophoric complex to that of the corresponding fluorophoric reagent.Amethod is described for the fluorimetric determination of zinc based on the formation of Zn(Ⅱ)-Morin complx in the presence of CM-β-CD.

Key words: Zinc, Morin, Ionic β-cyclodextrins, Fluorimetry

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