高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (3): 363.

• 论文 • 上一篇    下一篇

吡哌酸的固体表面-延迟荧光法研究

晋卫军, 陈素娥, 樊艳平, 刘长松   

  1. 山西大学化学系, 太原 0300061
  • 收稿日期:1994-03-29 修回日期:1994-11-10 出版日期:1995-03-24 发布日期:1995-03-24
  • 通讯作者: 刘长松
  • 作者简介:晋卫军,男,34岁,硕士,副教授.
  • 基金资助:

    国家自然科学基金;山西省自然科学基金

Studies on Solid Surface-Delay Fluorescence of Pipemidic Acid

JIN Wei-Jun, CHEN Su-E, FAN Yan-Ping, LIU Chang-Song   

  1. Department of Chemistry, Shanxi University, Taiyuan, 030006
  • Received:1994-03-29 Revised:1994-11-10 Online:1995-03-24 Published:1995-03-24

摘要: 研究了吡哌酸(PPA)的同体表面-延迟荧光特征,实验表明Be(Ⅱ)、Mg(Ⅱ)、Ca(Ⅱ)、Sr(Ⅱ)、Ba(Ⅱ)及Zn(Ⅱ)、Cd(Ⅱ)、La(Ⅲ)等无机盐能显著增强PPA的固体表面-延迟荧光(SS-DF).pH值对PPA的SS-DF有显著影响。寿命测量结果表明,在固体表面PPA是以双指数衰减的,同时测量了PPA的低温光谱,在本文选择的条件下,PPA分析曲线的线性范围为1.8~1800ng/斑点。

关键词: 固体表面-延迟荧光, 低温光谱, 寿命, 吡哌酸

Abstract: The solid surface-delayed fluorescence of pipemidic acid was studied. The experiments indicate that inorganic salts,Be(Ⅱ),Mg(Ⅱ),Ca(Ⅱ),Sr(Ⅱ),Ba(Ⅱ) and Zn(Ⅱ),Cd(Ⅱ),La(Ⅱ)etc., can enhance greatly the luminescence signal.The pHvalue has an obvious effect and the maximum luminescence signal can be obtained at pH 11.3 The measurements of lifetime indicates that PPA decays in the diexponential in the solid surface. The lifetimes are 2.79 ms and 1.70 ms, respectively. The low temperature spectra of PPAwere measured and the inorganic salts can also greatly increase low temperature luminescence signal.In this paper, the linear dynamic range of the analytical curve of PPAits 1.8ng-1800 ng/spot.

Key words: Solid surface-delayed fluorescence, Low temperature spectra, Lifetime, Pipemidic acid

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