Abstract Simple hydrothermal route was developed for synthesis of NiMnO3 in the presence of graphene quantum dot. The structure and morphological aspect of nano-hybrid were approved using FE-SEM, XRD and FT-IR. Then, these nano-particles were chosen as a modifier in carbon paste electrode, which produces noticeable catalytic effect for electro-oxidation of dobutamine. The oxidation mechanism of the drug was also studied using cyclic voltammetry. After variable optimization, a linear regression function was found in the range of 0.08–40.0 μM with the detection limit of 0.02 μM between the concentration of dobutamine and its anodic signal. The utility of the modified electrode was assessed by measuring the concentration of dobutamine in serum samples.

中文翻译：

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NiMnO 3 纳米颗粒锚定在石墨烯量子点上：在多巴酚丁胺的灵敏电解中的应用

摘要 开发了在石墨烯量子点存在下合成NiMnO3的简单水热路线。使用 FE-SEM、XRD 和 FT-IR 对纳米杂化物的结构和形态方面进行了验证。然后，选择这些纳米颗粒作为碳糊电极的改性剂，对多巴酚丁胺的电氧化产生显着的催化作用。还使用循环伏安法研究了药物的氧化机制。变量优化后，在0.08-40.0 μM范围内发现线性回归函数，多巴酚丁胺浓度与其阳极信号之间的检测限为0.02 μM。通过测量血清样品中多巴酚丁胺的浓度来评估改良电极的效用。