【作者】 姚夙； 向洁婷； 黄惜青； 韦寿莲； 汪洪武；

【Author】 Su Yao;Jieting Xiang;Xiqing Huang;Shoulian Wei;Hongwu Wang;School of Chemistry & Chemical Engineering, Zhaoqing University;

【机构】 肇庆学院化学化工学院；

【摘要】 碳纳米片具有良好的稳定性、大的表面积和优异的导电性能,被广泛应用于锂离子电池、超级电容器等领域。本文采用了一种简单廉价的超声电化学方法制备了羧基化碳纳米片,产物显示了优异的分散性和电催化性能。将其应用于盐酸吡哆醛的电化学分析,和裸电极以及未使用超声电化学方法制备的羧基化碳纳米片修饰电极相比,超声电化学方法制备的羧基化碳纳米片修饰电极上盐酸吡哆醛的峰电流显著增高。基于羧基化碳纳米片电极对盐酸吡哆醛的电催化氧化作用建立了盐酸吡哆醛的分析方法,该方法线性范围为2×10^-8～1×10^-6mol L^-1,检出限为8×10^-9mol L^-1,可应用于尿样和血样中盐酸吡哆醛的电化学分析。更多还原

【Abstract】 Carboxylic carbon nanosheets（CCNSs） was prepared with a very simple and low cost sonoelectrochemical method.The obtained CCNSs exhibited excellent dispersibility and electrocatalysis property.The electrochemical behaviour of pyridoxal was investigated on the CCNSs modified electrode.Compare to it on the glassy carbon electrode, the peak current on the CCNSs modified electrode showed 64-folds enhancement.Therefore, a sensitive differential pulse voltammetry method based on the CCNSs electrode was proposed for the determination of pyridoxal.Its linear range was 2×10^-8～1×10^-6 mol L^-1 and the detection limit was 8.0×10^-9 mol L^-1.The method has been applied to the analysis of pyridoxal in the urine and plasma sample.更多还原