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首页> 外文期刊>RSC Advances >The electrochemical behaviors of tetrahydropalmatine at a nickel nanoparticles/sulfonated graphene sheets modified glassy carbon electrode
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The electrochemical behaviors of tetrahydropalmatine at a nickel nanoparticles/sulfonated graphene sheets modified glassy carbon electrode

机译：四氢巴马汀在镍纳米粒子/磺化石墨烯片修饰玻碳电极上的电化学行为

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摘要

A novel electrochemical sensor was designed to determine tetrahydropalmatine (THP) by using a nickel nanoparticles deposited on sulfonated graphene sheets-modified glassy carbon electrode (NiNPs/SGS/GCE). The components and morphological properties of the NiNPs/SGS nanocomposites were investigated by scanning electron microscopy. The anodic peak current (I-pa) of THP at the GCE modified with NiNPs/SGS was much higher than those at the bare GCE and SGS/GCE due to the enhanced effect of the modified nanomaterials. Differential pulse voltammetry (DPV) disclosed a good linear relationship between I-pa and concentrations of THP (0.50-20.0 mu M), with a limit of detection of 0.17 mu M. Finally, the modified electrode was successfully applied for the determination of THP in Yuanhu Zhitong capsules.
机译：通过使用沉积在磺化石墨烯片修饰的玻碳电极（NiNPs / SGS / GCE）上的镍纳米粒子，设计了一种新型电化学传感器来测定四氢巴马汀（THP）。通过扫描电子显微镜研究了NiNPs / SGS纳米复合材料的成分和形貌特性。 NiNPs / SGS改性的GCE的THP的阳极峰值电流（I-pa）比裸GCE和SGS / GCE的阳极峰值电流高得多，这是由于改性纳米材料的作用增强了。差示脉冲伏安法（DPV）揭示了I-pa与THP浓度（0.50-20.0μM）之间的良好线性关系，检出限为0.17μM。最后，修饰电极成功用于THP的测定在元湖止痛胶囊中。

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