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首页> 外文期刊>International Journal of Electrochemical Science >Simultaneous Voltammetric Determination of Ascorbic Acid, Dopamine and Uric Acid by the Poly(alizarin yellow R)/GCE
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Simultaneous Voltammetric Determination of Ascorbic Acid, Dopamine and Uric Acid by the Poly(alizarin yellow R)/GCE

机译：聚茜素黄R / GCE同时伏安法测定抗坏血酸，多巴胺和尿酸

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摘要

A glassy carbon electrode (GCE) modified with the poly(alizarin yellow R) (PAYR) film was preparedby an electropolymerization method. Ascorbic acid (AA), dopamine (DA) and uric acid (UA) weredetermined by this electrode, and its electrocatalytic activity toward AA, DA and UA oxidation wasclearly demonstrated. The separate oxidation peak potentials of 178, 115 and 293 mV were found forAA/DA, DA/UA and AA/UA, respectively. The oxidation peak currents were linear with the respectivecompound concentrations, the linear ranges were 80 μM to 2000 μM (AA), 2.3 μM to17.5 μM (DA) and33 μM to 330 μM (UA), and the detection limits were 8.3 μM, 0.42 μM and 4.3 μM, respectively.Additionally, this electrode exhibited excellent performances characteristics including good selectivity,reproducibility and stability and was successfully used to detect DA in a real sample with satisfactoryresults.
机译：通过电聚合法制备了用聚茜素黄R（PAYR）膜改性的玻璃碳电极（GCE）。该电极测定了抗坏血酸（AA），多巴胺（DA）和尿酸（UA），并清楚地证明了其对AA，DA和UA氧化的电催化活性。对于AA / DA，DA / UA和AA / UA，分别发现了分别为178、115和293 mV的氧化峰电位。氧化峰电流与各自的化合物浓度呈线性关系，线性范围为80μM至2000μM（AA），2.3μM至17.5μM（DA）和33μM至330μM（UA），检出限为8.3μM，该电极分别具有0.42μM和4.3μM的性能。此外，该电极还具有优异的性能特征，包括良好的选择性，重现性和稳定性，并已成功用于实际样品中DA的检测，结果令人满意。

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