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引用本文:   罗贵铃, 牛燕燕, 邵波, 张晓萍, 赵常志, 孙伟. 四电极系统下辅酶Q10在氧化锌纳米棒修饰电极上的光电检测. 分析化学, 2020, 48(9): 1169-1176. doi:  10.19756/j.issn.0253-3820.201181 [复制]

Citation:   LUO Gui-Ling , NIU Yan-Yan , SHAO Bo , ZHANG Xiao-Ping , ZHAO Chang-Zhi , SUN Wei . Photoelectrochemical Determination of Ubiquinone 10 by Zinc Oxide Nanorods Modified Photoelectrode with a Four-electrode System. Chinese Journal of Analytical Chemistry, 2020, 48(9): 1169-1176. doi: 10.19756/j.issn.0253-3820.201181 [复制]

四电极系统下辅酶Q10在氧化锌纳米棒修饰电极上的光电检测

通讯作者:  赵常志, sunwei@hainnu.edu.cn; 孙伟, zhaocz@qust.edu.cn

收稿日期: 2020-04-05

基金项目: 本文系国家自然科学基金项目(Nos.21665007,21964007)、国家级大学生创业训练项目(No.30101100307)和青岛科技大学化学学部开放项目(No.QUSTHX201935)资助

Photoelectrochemical Determination of Ubiquinone 10 by Zinc Oxide Nanorods Modified Photoelectrode with a Four-electrode System

Corresponding author:  ZHAO Chang-Zhi , sunwei@hainnu.edu.cn; SUN Wei , zhaocz@qust.edu.cn

Received Date:  2020-04-05

Fund Project:  This work was supported by the National Natural Science Foundation of China (Nos. 21665007, 21964007),the National College Students Innovation and Entrepreneurship Training Program (No. 30101100307) and the Open Project of Chemistry Department of Qingdao University of Science and Technology (No. QUSTHX201935).

采用电沉积法制备了ZnO纳米棒修饰氧化铟锡(ITO)电极(ZnONR/ITO),利用四电极系统建立了一种高灵敏检测辅酶Q10(UQ10)的光电化学分析新方法。利用玻碳电极为第二工作电极,将溶液中UQ10预还原为UQ10H2,可作为电子供体在ZnONR/ITO上发生氧化反应,电子跃迁至导带后,光电流降低,进而用于检测UQ10。对电沉积ZnO纳米棒和光电化学检测条件进行了优化,在最优测定条件下,UQ10浓度的对数与光电流成反比,线性检测范围为1.0×10-12~1.0×10-5 mol/L,检出限为3.3×10-13 mol/L(S/N=3)。

关键词:   辅酶Q10, 光电化学分析, 四电极系统, 氧化锌纳米棒
Key words:   Ubiquinone 10, Photoelectrochemical analysis, Four-electrode system, Zinc oxide nanorods
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四电极系统下辅酶Q10在氧化锌纳米棒修饰电极上的光电检测

罗贵铃, 牛燕燕, 邵波, 张晓萍, 赵常志, 孙伟

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