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首页> 外文期刊>Japanese Journal of Applied Physics. Part 1, Regular Papers, Brief Communications & Review Papers >A Novel Electrochemical Detector using Prussian Blue Modified Indium Tin Oxide Electrode
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A Novel Electrochemical Detector using Prussian Blue Modified Indium Tin Oxide Electrode

机译:普鲁士蓝修饰的氧化铟锡电极的新型电化学检测器

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摘要

We propose a novel electrochemical detector (ECD) to catalyze redox efficiently by electrodepositing Prussian blue (PB, ferric hexacyanoferrate) on the indium tin oxide (ITO) electrode. Capillary electrophoresis (CE) and amperometric methods were used. We investigated the PB surface properties by topography from atomic force microscopy (AFM). The PB film on dense and smooth surfaces could catalyze redox reaction efficiently. Compared with CE-ECD microchips using a bare-ITO electrode, the proposed CE-ECD microchip using a PB modified electrode has shown better sensitivity of the electropherograms. It has been verified that wide-ranging detection can be performed under the limits of 0.01 mM of dopamine and catechol respectively when we use a PB modified electrode.
机译:我们提出了一种新型的电化学检测器(ECD),可通过在铟锡氧化物(ITO)电极上电沉积普鲁士蓝(PB,六氰合铁酸铁)来有效地催化氧化还原。使用毛细管电泳(CE)和安培法。我们通过来自原子力显微镜(AFM)的形貌研究了PB表面特性。致密和光滑表面上的PB膜可以有效地催化氧化还原反应。与使用裸ITO电极的CE-ECD微芯片相比,拟议的使用PB修饰电极的CE-ECD微芯片表现出更好的电泳图灵敏度。已经证明,当我们使用PB修饰电极时,可以分别在0.01 mM多巴胺和邻苯二酚的限制下进行宽范围的检测。

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