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首页> 外文期刊>RSC Advances >Graphitic carbon nanocage modified electrode for highly sensitive and selective detection of dopamine
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Graphitic carbon nanocage modified electrode for highly sensitive and selective detection of dopamine

机译：石墨碳纳米笼修饰电极，用于高灵敏度和选择性检测多巴胺

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In this study, graphitic carbon nanocages (CNCs) with high electrical conductivity were prepared by a solvothermal reaction. Transmission electron microscopy, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy and Raman spectroscopy were performed to characterize the morphology and structure of the CNCs. Due to their specific chemical structure, the CNCs provided the modified electrode with a high detecting selectivity as well as sensitivity toward dopamine (DA). Their excellent electrochemical catalytic activityies toward DA were investigated by cyclic voltammetry and differential pulse voltammetry. Under the optimum conditions, the peak current of DA was linear with its concentration in the range of 1-100 mu M, and the detection limit was estimated to be 0.18 mu M (S/N = 3). This modified glassy carbon electrode showed potential applications in the selective determination of DA due to its attractive merits.
机译：在这项研究中，通过溶剂热反应制备了具有高电导率的石墨碳纳米笼（CNC）。进行透射电子显微镜，X射线光电子能谱，傅里叶变换红外光谱和拉曼光谱来表征CNC的形态和结构。由于其特殊的化学结构，CNC为改性电极提供了高检测选择性以及对多巴胺（DA）的敏感性。通过循环伏安法和差分脉冲伏安法研究了它们对DA的优异的电化学催化活性。在最佳条件下，DA的峰值电流与其浓度在1-100μM范围内呈线性关系，估计检测限为0.18μM（S / N = 3）。这种修饰的玻碳电极由于其吸引人的优点，在选择性测定DA中显示出潜在的应用前景。

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