高等学校化学学报

高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (9): 1380.

• 论文 • 上一篇    下一篇

一种检测NO的修饰电极

丁才蓉, 莫金垣, 蔡沛祥   

  1. 中山大学化学与化学工程学院, 广州 510275
  • 收稿日期:1998-10-27 出版日期:1999-09-24 发布日期:1999-09-24
  • 通讯作者: 莫金垣
  • 作者简介:丁才蓉,女,26岁,硕士研究生.
  • 基金资助:

    广东省自然科学基金(批准号:960006)资助课题

A Micro-modified Electrode Detecting Nitric Oxide

DING Cai-Rong, Mo Jin-Yuan, CAI Pei-Xiang   

  1. Department of Chemisty, Zhongshan University, Guangzhou 510275, China
  • Received:1998-10-27 Online:1999-09-24 Published:1999-09-24

PDF (PC)

被引次数

15

摘要： 报道了[Fe(Sal2en)]2+的咪唑加合物对NO电氧化的影响.实验表明,它将[Fe(Sal2en)]2+对NO的电催化氧化活性提高T2倍.过量咪唑会降低[Fe(Sal2en)]2+对NO的催化活性.证实了NO的电催化氧化形成NO[Fe(Sal2en)]2+中间体的推断.用制得的修饰电极测定NO,当c(NO)在3×10-6～2×10-9mol/L时,有良好线性关系,相对标准偏差小于0.5％,线性相关系数为0.9994,检测限为2×10-9mol/L.满足生理分析的要求.

关键词: 一氧化氮, [Fe(Sal2en)]2+, 咪唑, 电催化氧化

Abstract: The effects of the adduct of imidazole and [Fe(Sal2en)]2+oxidizing nitric oxide electrocatalytically were studled in this paper.The adduct of the 1: 1 mole ratio of Im/[Fe(Sal2en)]2+can improve twice the sensitivity at which [Fe(Sal2en)]2+oxidizes nitric oxide.It is certain that the media NO·[Fe(Sal2en)]2+generates during the electro-oxidation of nitric oxide.The electrode above has a good linear response in the range of 3×10-6～2×10-9mol/Lof NO.The detection limit is 2×10-9mol/L, RSD%<0.5%, δ>0.9994.It satisfys with the need of the phsiological analysis.

Key words: Nitric oxide, Imidazole, [Fe(Sal2en)]2+, Electrocatalytic-oxidation

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