| 毛细管电泳电化学法检测过氧化氢 |
| |
| 引用本文： | 董冉冉,张燕,时克林,马艳芳,李玲君,王晓蕾.毛细管电泳电化学法检测过氧化氢[J].化学分析计量,2011,20(6):26-29. |
| |
| 作者姓名： | 董冉冉 张燕 时克林 马艳芳 李玲君 王晓蕾 |
| |
| 作者单位： | 1. 山东师范大学化学化工与材料科学学院,济南,250014
2. 淄博六中,淄博,252300 |
| |
| 摘 要： | 以金微盘电极和离子液体修饰单壁碳纳米管糊微盘电极分别作为毛细管电泳电化学检测器,试验了两种电极对过氧化氢的响应情况,将金微盘电极与毛细管电泳联用,对过氧化氢进行了定性和定量检测.探讨了分离电压、缓冲溶液pH值和工作电位等条件对H2O2检测的影响.实验结果表明,峰电流与H2O2浓度在1.0×10-6～1.0×10-5mo...
|
| 关 键 词： | 金微盘电极 碳纳米管糊微盘电极 毛细管电泳 电化学检测 过氧化氢 |
DETERMINATION OF HYDROGEN PEROXIDE BY CAPILLARY ELECTROPHORESIS WITH AMPEROMETRIC DETECTION |
| |
| Dong Ranran,Zhang Yan,Shi Kelin,Ma Yanfang,Li Lingjun,Wang Xiaolei.DETERMINATION OF HYDROGEN PEROXIDE BY CAPILLARY ELECTROPHORESIS WITH AMPEROMETRIC DETECTION[J].Chemical Analysis And Meterage,2011,20(6):26-29. |
| |
| Authors: | Dong Ranran Zhang Yan Shi Kelin Ma Yanfang Li Lingjun Wang Xiaolei |
| |
| Institution: | 1(1.College of Chemistry Chemical Engineering and Materials Science,Shandong Normal University,Jinan 250014,China; 2.Zibo No.6 High School of Shandong,Zibo 252300,China) |
| |
| Abstract: | Gold microelectrode and ionic liquid modified-SWNTs paste microelectrode made by ourselves were used in capillary zone electrophoresis with electrochemical end-column amperometric detection to determine hydrogen peroxide. Gold microelectrode showed higher sensitivity to H2O2 was used as the detector of capillary electrophoresis. Factors influencing the performance, including separation voltage, detection potential and pH value of the buffer were studied. Under optimized detection conditions, hydrogen peroxide responded linearly from 1.0× 10-5-1 × 10-3 mol/L and 3.0 × 10-5-1.0 × 10-3 with a correlation coefficient of 0.997 5 and 0.999 0 respectively. The concentration limit of detection of the method was 5 × 10-7 mol/L （ S/N=3 ）. The experiment also showed that there was no electroactive interferences such as dopamine and ascorbie acid. |
| |
| Keywords: | gold microelectrode SWNTs paste microelectrode capillary electrophoresis electrochemical detection hydrogen peroxide |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
