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首页> 外文期刊>Journal of Electronic Materials >Electrochemical Determination of Baicalin in Traditional Chinese Medicine Based on the Enhancement Effect of MoO3-Reduced Graphene Oxide Nanocomposite
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Electrochemical Determination of Baicalin in Traditional Chinese Medicine Based on the Enhancement Effect of MoO3-Reduced Graphene Oxide Nanocomposite

机译：基于MOO3-氧化石墨烯纳米复合材料增强效应的中药在中药中黄芩苷的电化学测定

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摘要

The nanocomposites of MoO3-reduced graphene oxide (MoO3-RGO) were synthesized by hydrothermal reduction using MoCl5 and graphene oxide as precursors. The resulting composites were characterized with scanning electron microscopy, x-ray diffraction, Fourier transform infrared spectroscopy, thermogravimetric analysis and Raman spectra, and were further used to modify the glassy carbon electrode (GCE). After optimizing the parameters, the electrochemical behavior of baicalin on different types of electrodes was investigated. The MoO3-RGO composite-modified GCE exhibited remarkably enhanced electrochemical signals of baicalin. After 90 s, under open circuit potential, oxidation and reduction peaks appeared at 0.207 V and 0.103 V, respectively. A sensitive and simple electrochemical method was proposed for the determination of baicalin in which the calibration curve ranges from 1.0 x 10(-9) M to 4.3 x 10(-5) M, and the detection limit is 3.81 x 10(-10) M.
机译：通过使用MOCl5和石墨烯作为前体的水热还原，通过水热还原合成MOO3-氧化石墨烯（MOO3-RGO）的纳米复合材料。 通过扫描电子显微镜，X射线衍射，傅里叶变换红外光谱，热重分析和拉曼光谱，并进一步用于改变玻璃碳电极（GCE）的所得复合材料。 在优化参数之后，研究了黄芩苷对不同类型电极的电化学行为。 MOO3-RGO复合改性的GCE表现出明显增强的黄芩苷的电化学信号。 在90秒之后，在开路电位下，氧化和还原峰分别出现在0.207 V和0.103V。 提出了一种敏感且简单的电化学方法，用于测定校准曲线的校准曲线范围为1.0×10（-9）m至4.3×10（-5）m，检测限为3.81 x 10（-10） m

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