| 掺磷钼杂多酸聚吡咯修饰铂微电极催化氧化测定多巴胺 |
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| 引用本文： | 莫蔚明,李舒婷,康彩艳.掺磷钼杂多酸聚吡咯修饰铂微电极催化氧化测定多巴胺[J].广西科学,1997,4(3):233-234,240. |
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| 作者姓名： | 莫蔚明 李舒婷 康彩艳 |
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| 作者单位： | 广西师范大学 |
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| 摘 要： | 对掺磷钼杂多酸聚吡咯电极的聚合、伏安行为，及其对多巴胺的电催化效应进行了研究。该膜电极性能稳定，多巴胺浓度在５×１０－５ｍｏｌ／Ｌ～１０－２ｍｏｌ／Ｌ成线性关系，检测限为８．０×１０－６ｍｏｌ／Ｌ，用于多巴胺针剂中多巴胺（ＤＡ）的含量测定获得满意的结果。
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| 关 键 词： | 化学修饰电极 多巴胺 磷钼杂多酸 神经递质 测定 |
| 收稿时间： | 1996/12/30 0:00:00 |
Electrocatalytic Determination of Dopamine by Polypyrrole Doped with Phosphomolybdic Acid Film |
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| Mo Weiming,Li Shuting and Kang Caiyan.Electrocatalytic Determination of Dopamine by Polypyrrole Doped with Phosphomolybdic Acid Film[J].Guangxi Sciences,1997,4(3):233-234,240. |
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| Authors: | Mo Weiming Li Shuting and Kang Caiyan |
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| Institution: | Guangxi Normal University, Sanlidian, Guilin, 541004,Guangxi Normal University, Sanlidian, Guilin, 541004 and Guangxi Normal University, Sanlidian, Guilin, 541004 |
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| Abstract: | A polypyrrole doped with phosphomolybdic film modified electrode was made by electrochemically deposition in acidic pyrrole solution containing phosphomolybdic acid.The electrocatalytic oxidation of dopamine on the electrode was found and was further examined.The oxidation peak potential shifts negatively about 120 mv.The modified electrode can be used for determination of dopamine in the concentration range of 5×10-5 -10-2 mol/L with detection limit 8.0×10-6 mol/L.This method has been successfully appilied to the analysis of dopamine in injection. |
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| Keywords: | phosphomolybdic acid polypyrrole chemicaly modified electrode dopamine |
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