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| 阳离子选择性膜修饰Ir/IrO_x-pH电极增敏作用研究 | |
| 引用本文： | 杜宝中,李向阳,薛力.阳离子选择性膜修饰Ir/IrO_x-pH电极增敏作用研究[J].分析试验室,2009,28(1). |
| 作者姓名： | 杜宝中 李向阳 薛力 |
| 作者单位： | 1. 西北工业大学理学院,西安,710072;西安理工大学应用化学系,西安,710054 2. 中国兵器工业集团第二一二研究所,西安,710065 3. 西安理工大学应用化学系,西安,710054 |
| 基金项目： | 陕西省教育厅自然科学基金 |
| 摘 要： | 采用阳离子选择性透过膜对Ir/IrOx-pH电极表面进行修饰,提高了电极抗阴离子氧化/还原性物质的干扰能力.利用SEM观察离子选择性透过膜的表面孔径分布;通过循环伏安法研究了氧化物电极在Fe(CN)63- 溶液中的电化学行为.实验表明,选择性透过膜对电极的E-pH线性、准确度、响应时间等无影响,显著改善了电极在含氧化/还原性物质中的使用性能.从而提高了电极的抗干扰能力和灵敏度. |
| 关 键 词： | 选择性膜 修饰 Ir/IrOx-pH电极 抗干扰 增敏 |
Study on enhanced sensitivity function of pH electrode coated positive-ion selective film |
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| DU Bao-zhong,LI Xiang-yang,XUE Li.Study on enhanced sensitivity function of pH electrode coated positive-ion selective film[J].Chinese Journal of Analysis Laboratory,2009,28(1). | |
| Authors: | DU Bao-zhong LI Xiang-yang XUE Li |
| Institution: | 1;2;1.Department of Applied Chemistry;Northwestern Polytechnical University;Xi'an 710072;2.Department of Applied Chemistry;Xi'an University of Technology;Xi'an 710054;3.CNGC institute 212;Xi'an 710065 |
| Abstract: | Positive-ion selective film was used to modify the Ir/IrO_x-pH electrode,and it is found that the coated ion selective film on the electrode improves the anti-interference ability toward oxidation/reduction) of negative ions.SEM was used to observe the pore size distribution on the surface of the coated selective film modified electrode.Ihe elec- trochemical behavior of the film-coated electrode in Fe(CN)_6~(3-) solution was studied by cyclic voltammetry,and the re- suit showeds that the selective film did ... |
| Keywords: | Selective film Modification Ir/IrO_x-pH electrode Anti-interference Enhanced sensitivity |
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