高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (11): 2063.

• 研究论文 • 上一篇    下一篇

碘化10-乙羧基吖啶-9-羧酸苯酯的电致化学发光行为研究

杨敏丽, 刘传之, 何品刚, 方禹之   

  1. 华东师范大学化学系, 上海200062
  • 收稿日期:2001-10-22 出版日期:2002-11-24 发布日期:2002-11-24
  • 通讯作者: 方禹之(1931年出生),男,教授,博士生导师,主要从事电分析化学及生物电分析研究.
  • 基金资助:

    国家自然科学基金(批准号:29975010)资助

Studies on the Electrochemilluminescence of 10-(Carboxylethyl)- acridinium-9-carboxyl-phenyl-ester Iodinate

YANG Min-Li, LIU Chuan-Zhi, HE Pin-Gang, FANG Yu-Zhi   

  1. Department of Chemistry, East China Normal University, Shanghai 200062, China
  • Received:2001-10-22 Online:2002-11-24 Published:2002-11-24

摘要: 研究了碘化10-乙羧基吖啶-9-羧酸苯酯(CACPEI)的电致化学发光行为.结果表明,在KNO3介质中,于Pt电极上施加正矩形脉冲电压时,10-乙羧基吖啶-9-羧酸苯酯产生很强的电致化学发光(ECL)信号,信号强弱受电化学参数和发光反应条件的影响,探讨了可能的发光机理.在最佳条件下发光信号与CACPEI的浓度在5.0×10-10~1.2×10-7g/mL范围内呈良好的线性关系.检出限可达2.4×10-10g/mL.

关键词: 电致化学发光, 化学发光, 碘化10-乙羧基吖啶-9-羧酸苯酯

Abstract: A study of the electrochemilluminescence(ECL) of 10-(carboxylethyl)-acridinium-9-carboxyl-phenyl-ester iodinate(CACPEI) in a neutral solution was carried out. It was found that CACPEI gives a strong ECL in KNO3 solution when an appropriate voltage was applied on Pt electrode. The ECL signal was greatly influenced by the electrochemical parameters and the ECL reaction conditions. All the affecting factors were investigated in detail. Under the optimum conditions, the ECL intensity exhibited a good linear relationship with the concentration of CACPEI in the range of 5.0×10-10-1.2×10-7 g/mL. The detection limit of CACPEI was 2.4×10-10 g/mL(S/N=3). The proposed ECL mechanism was discussed.

Key words: Electrochemilluminescence, Chemilluminescence, 10-(Carboxylethyl)-acridinium-9-carboxyl-phenyl-ester iodinate(CACPEI)

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