| 铋粉碳糊修饰电极在氢氧化钠溶液中的伏安行为研究 |
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| 引用本文： | 夏新泉,陈灵,张海丽. 铋粉碳糊修饰电极在氢氧化钠溶液中的伏安行为研究[J]. 河南科学, 2006, 24(4): 496-498 |
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| 作者姓名： | 夏新泉 陈灵 张海丽 |
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| 作者单位： | 湖北师范学院,化学与环境工程学院,黄石,4350013;湖北师范学院,化学与环境工程学院,黄石,4350013;湖北师范学院,化学与环境工程学院,黄石,4350013 |
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| 摘 要： | 制备了铋粉碳糊修饰电极,研究了修饰电极在氢氧化钠溶液中的伏安性质,对测定条件进行了优化.实验发现,在-0.85V处有一灵敏的不可逆还原峰,峰电流与氢氧化钠溶液浓度在10-9￣1mol/L范围内呈良好的线性关系,相关系数为0.9978.并探讨了修饰电极在氢氧化钠溶液中的电极反应机理.该修饰电极有望作为低酸度下的pH传感器.
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| 关 键 词： | 铋粉碳糊修饰电极 循环伏安法 氢氧化钠 |
| 文章编号： | 1004-3918(2006)04-0496-03 |
| 收稿时间： | 2006-03-27 |
| 修稿时间： | 2006-03-27 |
The Voltammetric Behavior of Sodium Hydroxide at Carbon Paste Electrode Modified with Bismuth Powder |
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| XIA Xin-quan,CHEN Ling,ZHANG Hai-li. The Voltammetric Behavior of Sodium Hydroxide at Carbon Paste Electrode Modified with Bismuth Powder[J]. Henan Science, 2006, 24(4): 496-498 |
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| Authors: | XIA Xin-quan CHEN Ling ZHANG Hai-li |
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| Affiliation: | Department of Chemistry and Environment Engineering, Hubei Normal University, Huangshi 435002, China |
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| Abstract: | A carbon paste electrode modified with Bismuth powder(Bi-CPE) was maded,the voltammetric behavior was studied in Sadium hydroxide solution at modified electrode.The experiment shows that a sensitive reduction peak was observed,the peak potential was at-0.85V.The electrode displayed excellent linear behavior in the examined concentration range from 1×10-9 to 1.0mol/L NaOH solution,r= 0.9978.The reaction mechanism of modified electrode was investigated also.The modified electrode would be expected to be a detection instrument of pH. |
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| Keywords: | Bi-CPE cyclic vohammetry Sodium hydroxide |
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