NiHCF/石墨烯膜电极用于电化学检测抗坏血酸  

Electrochemical Determination of Ascorbic Acid UsingNiHCF/Graphene Film Electrode

作　　者：余小娜[1] 苏趁意 YU Xiaona;SU Chenyi(Food and Pharmacy College,Xuchang University,Xuchang 461000,China)

机构地区：[1]许昌学院食品与药学院,河南许昌461000

出　　处：《许昌学院学报》2023年第5期58-61,共4页Journal of Xuchang University

基　　金：河南省大学生创新创业项目(S202210480043)。

摘　　要：将热还原石墨烯和铁氰化镍(NiHCF)颗粒经超声分散后得到NiHCF/石墨烯复合物,采用扫描电子显微镜、傅里叶红外等技术表征了石墨烯及石墨烯复合物的形貌及特征结构.利用循环伏安法考察了NiHCF/石墨烯膜电极的电化学行为.结果表明,该材料具有优异的电子传递性能.采用计时电流测试技术实现了对抗坏血酸的定量检测,在1×10^(-4)~7×10^(-4)mol·L^(-1)浓度范围内,响应电流和分析物浓度之间呈现良好的线性关系.该NiHCF/石墨烯膜电极有望用于实际样品中抗坏血酸的灵敏、快速检测.NiHCF/Graphene composites were prepared by ultrasonic dispersion of thermally reduced Graphene and nickel hexacyanoferrate(NiHCF)particles.The morphology and characteristic structure of Graphene and Graphene composites were characterized by scanning electron microscope and fourier infrared spectroscopy.The electrochemical behavior NiHCF/Graphene film electrode was investigated by Cyclic voltammetry.The experimental results indicate that the composite material has excellent electronic conductivity.Quantitative detection of ascorbic acid was achieved using i-t testing technology on film electrode.Within the concentration range of 1×10^(-4)~7×10^(-4)mol·L^(-1),there is a good linear relationship between the response current and the analyte concentration.The NiHCF/Graphene membrane electrode is expected to be used for the sensitive and rapid determination of ascorbic acid in actual samples.

关 键 词：石墨烯 铁氰化镍 抗坏血酸 循环伏安法 计时电流法 

分 类 号：O657.1[理学—分析化学]