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首页> 外文期刊>International Journal of Electrochemical Science >The Determination of Riboflavin (Vitamin B2) Using Manganese Dioxide Modified Glassy Carbon Electrode by Differential Pulse Voltammetry
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The Determination of Riboflavin (Vitamin B2) Using Manganese Dioxide Modified Glassy Carbon Electrode by Differential Pulse Voltammetry

机译：二氧化锰修饰玻碳电极微分脉冲伏安法测定核黄素（维生素B 2 ）

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摘要

A manganese dioxide modified glassy carbon electrode (MnO2/GCE) was prepared by coating methodand used for the determination of riboflavin (VB2) by differential pulse voltammetry (DPV). Theinfluence of activation, amount of MnO2, buffer type, buffer pH and concentration on the peak currentof VB2 was investigated, and the experimental results revealed that the DPV peak current of VB2shows a linear relationship with its concentration in the range of 2.0 × 10–6 – 1.1 × 10–4 mol L?1 with acorrelation coefficient of 0.9991. For 1.0 × 10–5 mol L?1 vitamin B2, the RSD is 1.7 % (n=10), and thedetection limit is 2.7 × 10–8 mol L?1. The method reveals the excellence of simple, sensitive, goodrepeatability and anti-interference. It has been applied to the determination of VB2 in tablet andsatisfactory results obtained.
机译：采用包覆法制备了二氧化锰改性玻碳电极（MnO2 / GCE），并通过差示脉冲伏安法（DPV）测定了核黄素（VB2）。研究了活化，MnO2含量，缓冲液类型，缓冲液pH和浓度对VB2峰值电流的影响，实验结果表明，VB2的DPV峰值电流与其浓度在2.0×10–6范围内呈线性关系。 – 1.1×10–4 mol L？1，相关系数为0.9991。对于1.0×10-5 mol L？1维生素B2，RSD为1.7％（n = 10），检出限为2.7×10-8 mol L？1。该方法显示出简单，灵敏，良好的重复性和抗干扰性。已用于片剂中VB2的测定，结果令人满意。

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