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高等学校化学研究 ›› 1998, Vol. 14 ›› Issue (4): 399-403.

• Articles • 上一篇    下一篇

A Study of Fluorescence System of Eu-Chlorotetracycline-Benzoylacetone-CTMAB Multibasic Complex

WU Xia, YANG Jing-he, ZHANG Gui-ling, LI Yong-shan, DING Yuan-ju   

  1. Department of Chemistry, Shandong University, Jinan 250100
  • 收稿日期:1998-03-30 出版日期:1998-12-24 发布日期:2011-08-17
  • 通讯作者: YANG Jing-he
  • 基金资助:

    Supported by the National Natural Science Foundation of China.

A Study of Fluorescence System of Eu-Chlorotetracycline-Benzoylacetone-CTMAB Multibasic Complex

WU Xia, YANG Jing-he, ZHANG Gui-ling, LI Yong-shan, DING Yuan-ju   

  1. Department of Chemistry, Shandong University, Jinan 250100
  • Received:1998-03-30 Online:1998-12-24 Published:2011-08-17

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摘要： A fluorescence Eu-chlorotetracycline-benzoylacetone-CT MAB system was studied.It was found that chlorotetracy cline formed a complex with Eu(Ⅲ)at pH 7.8—8.8 and then emitted the characteristic fluor escence of Eu(Ⅲ).Benzoy lacetone and CTMAB can greatlyenhance the fluorescence intensity of the system.The experiments indicated that under the optimum conditions there was a linear relationship between the fluorescence intensity and chlorotetr acycline concentr ation in the range of 1.8×10-8—2.0×10-5 mol/L.The detection limit was 2.3×10-9 mol/L.Inaddition,the luminescence mechanism of the complex system is discussed.

关键词: Europium, Fluorimetry, Chlortetracycline determination

Abstract: A fluorescence Eu-chlorotetracycline-benzoylacetone-CT MAB system was studied.It was found that chlorotetracy cline formed a complex with Eu(Ⅲ)at pH 7.8—8.8 and then emitted the characteristic fluor escence of Eu(Ⅲ).Benzoy lacetone and CTMAB can greatlyenhance the fluorescence intensity of the system.The experiments indicated that under the optimum conditions there was a linear relationship between the fluorescence intensity and chlorotetr acycline concentr ation in the range of 1.8×10-8—2.0×10-5 mo \l/L.The detection limit was 2.3×10-9 mol/L.Inaddition,the luminescence mechanism of the complex system is discussed.

Key words: Europium, Fluorimetry, Chlortetracycline determination