| 二茂铁-离子液体修饰碳糊电极的研制 |
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| 引用本文： | 程翠翠,董冉冉,张燕,王晓蕾.二茂铁-离子液体修饰碳糊电极的研制[J].化学分析计量,2010,19(5):26-28. |
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| 作者姓名： | 程翠翠 董冉冉 张燕 王晓蕾 |
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| 作者单位： | 山东师范大学化学化工与材料科学学院,济南250014 |
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| 基金项目： | 山东省自然科学基金，山东省博士后创新项目专项资金 |
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| 摘 要： | 以室温离子液体N-辛基吡啶六氟磷酸盐为粘合剂与二茂铁和石墨粉相混合制备了一种新型二茂铁-离子液体修饰碳糊电极。以该电极为工作电极,采用循环伏安法、计时安培法研究了多巴胺(DA)在该糊电极上的电化学行为。实验结果表明:该电极在pH 5.0的乙酸-乙酸钠缓冲溶液中,外加电压0.8 V条件下,灵敏度最高。电流增量与DA浓度在1.0×10-5～1.0×10-3 mol/L范围内呈良好的线性关系,检出限为5.0×10-6 mol/L(S/N=3)。
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| 关 键 词： | 碳糊电极 N-辛基吡啶六氟磷酸盐 二茂铁 多巴胺 |
FABRICATION OF FERROCENE - IONIC LIQUID MODIFIED CARBON PASTE ELECTRODE |
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| Cheng Cuicui,Dong Ranran,Zhang Yan,Wang Xiaolei.FABRICATION OF FERROCENE - IONIC LIQUID MODIFIED CARBON PASTE ELECTRODE[J].Chemical Analysis And Meterage,2010,19(5):26-28. |
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| Authors: | Cheng Cuicui Dong Ranran Zhang Yan Wang Xiaolei |
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| Institution: | (College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China) |
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| Abstract: | The ionic liquid N-oetylpyridinum hexafluorophosphate （OPFP） was used as a binder combining with ferroeene （Fc） and carbon graphite to make a Fc -OPFPE modified carbon paste electrode （Fc -OPFP- CPE）. The electrochemical behavior of dopamine at this electrode was investigated by cyclic voltammetry （CV） and chronoamperometry. The experimental results suggested that the proposed electrode exhibited an electrocatalytic activity toward the redox of dopamine in HAc - NaAc buffer solution （pH 5.0）. The anodic current recorded by amperometry with constant potential 0.8 V was proportional to the concentration of dopamine in the range 1. 0 × 10^-5 - 1.0 ×10 ^-3 mol/L, with a detection limit of 5.0 × 10^ -6 mol/L （S/N = 3 ）. |
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| Keywords: | carbon paste electrode N-octylpyridinum hexafluorophosphate ferrocene dopamine |
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