| 多贝斯在石墨烯修饰玻碳电极上的电化学行为及其测定 |
| |
| 引用本文： | 张亚,杜芳艳,郑建斌.多贝斯在石墨烯修饰玻碳电极上的电化学行为及其测定[J].应用化学,2014,31(7):860-864. |
| |
| 作者姓名： | 张亚 杜芳艳 郑建斌 |
| |
| 作者单位： | (1.榆林学院化学与化学工程学院榆林 719000；2.西北大学分析科学研究所 西安 710069) |
| |
| 基金项目： | 陕西省科技厅项目(2010JM2017);榆林学院项目(10GK02)~~ |
| |
| 摘 要： | 制备了石墨烯修饰玻碳电极（GN/GCE）。 在0.05 mol/L H2SO4溶液中，用循环伏安法研究了多贝斯在GN/GCE上的电化学行为。 结果表明，GN/GCE对多贝斯的氧化还原反应有明显的电催化作用。 建立了测定多贝斯的新方法，用微分脉冲伏安法测得多贝斯的氧化峰电流与其浓度在2.0×10-9~1.2×10-6 mol/L范围内呈线性关系，检出限为1.0×10-9 mol/L(S/N=3)。 该法可用于胶囊中多贝斯的测定，修饰电极有较好的稳定性和重新性。
|
| 关 键 词： | 多贝斯 石墨烯 修饰电极 电催化 |
| 收稿时间： | 2013-09-24 |
| 修稿时间： | 2013-11-12 |
Electrochemical Behavior and Determination of Calcium Dobesilate at Graphene Modified Glassy Carbon Electrode |
| |
| ZHANG Ya,DU Fangyan,ZHENG Jianbin.Electrochemical Behavior and Determination of Calcium Dobesilate at Graphene Modified Glassy Carbon Electrode[J].Chinese Journal of Applied Chemistry,2014,31(7):860-864. |
| |
| Authors: | ZHANG Ya DU Fangyan ZHENG Jianbin |
| |
| Institution: | (1.Department of Chemistry and Chemical Engineering,Yulin College,Yulin 719000,China；;
2.Institute of Analytical Science,Northwest University,Xi′an 710069,China) |
| |
| Abstract: | A graphene modified glassy carbon electrode(GN/GCE) was prepared. The electrochemical behavior of calcium dobesilate on the modified electrode was investigated in 0.05 mol/L H2SO4 by cyclic voltammetry. The GN/GCE shows an obvious electrocatalytic activity toward the redox reaction of calcium dobesilate and a new method for the determination of calcium dobesilate is established. On differential pulse voltammetry curves, a linear dependence of oxidation current versus calcium dobesilate concentration is obtained in the range of 2.0×10-9~1.2×10-6 mol/L, with a detection limit of 1.0×10-9 mol/L(S/N=3). The proposed method was applied to determine calcium dobesilate in capsule. The modified electrode shows excellent stability and reproducibility. |
| |
| Keywords: | calcium dobesilate graphene modified electrode electrocatalysis |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《应用化学》浏览原始摘要信息 |
| 点击此处可从《应用化学》下载免费的PDF全文 |
