影像科学与光化学 ›› 1996, Vol. 14 ›› Issue (1): 38-43.DOI: 10.7517/j.issn.1674-0475.1996.01.38

• 研究简报 • 上一篇    下一篇

荧光猝灭方法研究腺苷酸衍生物与嘧啶碱的弱相互作用──Stern-Volmer方程在竞争吸收体系中的修正式

樊平1, 樊美公2   

  1. 1. 广西师范学院化学系, 南宁530001;
    2. 中国科学院感光化学研究所, 北京100101
  • 收稿日期:1995-03-13 修回日期:1995-10-16 出版日期:1996-02-20 发布日期:1996-02-20
  • 通讯作者: 樊平
  • 基金资助:
    国家自然科学基金

STUDIE ON WEAK INTERACTION BETWEEN AMP DERIVATIVE AND PYRIMIDINE BASES BY FLUORESCENCE QUENCHING──MODIFIED FORM OF STERN-VOLMER EQUATION FOR COMPETITIVE-ABSORPTION-SYSTEMS

FAN Ping1, FAN Meigong2   

  1. 1. Department OF Chemistry, Guangxi Teachers College, Nanning 530001, P. R. China;
    2. Institute of Photographic Chemistry, The Chinese Acadenyof Sciences, Beijing 100101, P. R. China
  • Received:1995-03-13 Revised:1995-10-16 Online:1996-02-20 Published:1996-02-20

摘要: 已知在液氮温度下(77 K)核酸碱基之间能生成基态复合物[1],这些复合物的荧光发射有比较大的红移.在室温条件下,核酸碱基的荧光发射量子产率很低,以至几乎无法检测.

关键词: 磷酸腺苷, 嘧啶碱基, 荧光猝灭, 竞争吸收体系, Stern-Volmer方程

Abstract: The fluorescence quenching of 8-azido-1,N6-ethene-5’-adenosine monophosphate(8-N3-E-AMP)bv thymine(T),uracil(U)and cytosine(C)at different temperature has been observed.The results indicate that the fluorescence quenching is not only due to the competitive absorption but also due to the formation of ground state complexes.The equations describing the fluorescence quenching in competitive-absorption-systems have been proposed.A modified form of Stern-Volmer equation is agreement with the results of experiments.

Key words: fluorescence quenching, competive-absorption-system, stern-volmer equation, 8-azido-1,N6-ethene-5’-AMP, pyrimdine bases