| 铂微粒修饰固体石蜡碳糊电极对过氧化氢的电催化特征及分析应用 |
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| 引用本文： | 李建平,陈文,舒柏崇.铂微粒修饰固体石蜡碳糊电极对过氧化氢的电催化特征及分析应用[J].广西科学,2000,7(4):272-274. |
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| 作者姓名： | 李建平 陈文 舒柏崇 |
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| 作者单位： | 1. 桂林有色矿产地质研究院，桂林,541004
2. 桂林工学院应用化学系桂林市建干路12号 541004 |
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| 摘 要： | 研究铂微粒修饰的固体石蜡碳糊电极(Pt-SCPE)对H2O2的电催化行为。在pH值4.6的柠檬酸盐-0.03 mol/L硝酸钾溶液中，用该电极H2O2在+0.18V(vs．SCE)可产生灵敏的还原电流，线性范围为1.0×10-1 mol/L～3.0×10-7 mol/L,检出限为7.5×10-8 mol/L。Pt-SCPE与液体石蜡碳糊电极比较，在峰电位、线性响应范围、检出限方面有更好的结果。用该电极测定样品中的过氧化氢，获得满意结果。
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| 关 键 词： | 碳糊电极 固体石蜡 铂 过氧化氢 电催化 修饰 |
| 收稿时间： | 2000/7/31 0:00:00 |
| 修稿时间： | 2000年7月31日 |
Electrocatalytsis Characters of Determination of Platinum dispersed Carbon Paste Electrode with Solid Paraffin as a Binder on Hydrogen Peroxide |
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| Li Jianpin,Chen Wen and Shu Baichong.Electrocatalytsis Characters of Determination of Platinum dispersed Carbon Paste Electrode with Solid Paraffin as a Binder on Hydrogen Peroxide[J].Guangxi Sciences,2000,7(4):272-274. |
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| Authors: | Li Jianpin Chen Wen and Shu Baichong |
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| Institution: | Dept. of Applied Chem., Guilin Institute of Tech., 12 Jianganlu, Guilin, Guangxi, 541004, China,Dept. of Applied Chem., Guilin Institute of Tech., 12 Jianganlu, Guilin, Guangxi, 541004, China and Dept. of Applied Chem., Guilin Institute of Tech., 12 Jianganlu, Guilin, Guangxi, 541004, China |
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| Abstract: | The platinum-dispersed carbon paste electrode with solid paraffin as a binder (Pt-SCPE) was prepared and used for determination of hydrogen peroxide. In 0.03 mol/L KNO3 and pH4.6 sodium citrate buffered solution, H2O2 could be reduced on Pt-SCPE,and produce a sensitive wave with peak potential at +0.18 V. The liner response was obtained for the concentration of H2O2 in the range of 3.0×10-7 mol/L to 1.0×10-1 mol/L, and the detection limit was 7.5×10-8 mol/L. As compared with Pt-iquid carbon paste electrode, Pt-SCPE showed more advantages in peak potential, linear response range and detection limit. The satisfied results were obtained in several samples'' analysis. |
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| Keywords: | carbon paste electrode solid paraffin platinum hydrogen peroxid| |
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