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首页> 外文期刊>International Journal of Electrochemical Science >Manganese Hexacyanoferrate with Poly(3,4-ethylenedioxythiophene) Hybrid Film Modified Electrode for the Determination of Catechin and Melatonin
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Manganese Hexacyanoferrate with Poly(3,4-ethylenedioxythiophene) Hybrid Film Modified Electrode for the Determination of Catechin and Melatonin

机译：六氰基锰酸锰与聚（3,4-乙烯二氧噻吩）杂化膜修饰电极测定儿茶素和褪黑激素

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摘要

The manganese hexacyanoferrate (MnHCF) mixed-valent poly(3,4-Ethylenedioxythiophene) (PEDOT)hybrid film (MnHCF-PEDOT) was prepare on glassy carbon electrode by multiple scan cyclicvoltammetry. These materials are characterized using atomic force microscopy (AFM), field emissionscanning electron microscope (FE-SEM), energy dispersive spectroscopy (EDS), x-ray diffractionstudies (XRD) and electrochemical impedance studies (EIS) techniques. The advantages of these filmsare demonstrated for detection of catechin and melatonin using cyclic voltammetry and amperometric.The electrocatalytic oxidation of catechin and melatonin at different electrode surfaces such as the bareGCE, MnHCF/GCE and MnHCF-PEDOT/GCE modified electrodes was explored in 0.1 M KClsolution at pH 1.5.The electrochemical sensor for catechin and melatonin exhibited a wide linear2 2 response range (0.1 to 4.4 M, R = 0.9965 for catechin and 0.1 to 4.6 mM, R = 0.9998 for melatonin),lower detection limit (0.01 mM) and fast response time (3 s).In addition, the MnHCF-PEDOT/GCEexhibited a distinct advantage of simple preparation, specificity, stability and reproducibility.
机译：通过多次扫描循环伏安法在玻璃碳电极上制备了六氰合高铁酸锰（MnHCF）混合价聚（3，4-乙撑二氧噻吩）（PEDOT）混合膜（MnHCF-PEDOT）。这些材料使用原子力显微镜（AFM），场发射扫描电子显微镜（FE-SEM），能量色散光谱（EDS），X射线衍射研究（XRD）和电化学阻抗研究（EIS）技术进行表征。在循环伏安法和安培法中检测了儿茶素和褪黑素的膜的优势得到了证明。在0.1 M上探索了在不同的电极表面（例如，裸GCE，MnHCF / GCE和MnHCF-PEDOT / GCE修饰电极）上的儿茶素和褪黑素的电催化氧化pH为1.5时的KCl溶液。儿茶素和褪黑激素的电化学传感器表现出较宽的线性2 2响应范围（0.1-4.4 M，儿茶素的R = 0.9965和褪黑激素的0.1-4.6 mM，R = 0.9998），检测限较低（0.01 mM） MnHCF-PEDOT / GCE具有制备简单，特异性，稳定性和可重复性的明显优势。

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