| 引用本文： |
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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. [点击复制]
- Li Jianpin,Chen Wen,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. [点击复制]
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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-0.03mol/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。 |
| 关键词: 碳糊电极 固体石蜡 铂 过氧化氢 |
| DOI： |
| 投稿时间：2000-07-31 |
| 基金项目: |
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| 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, Shu Baichong
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| (Dept. of Applied Chem., Guilin Institute of Tech., 12 Jianganlu, Guilin, Guangxi, 541004, China) |
| 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. |
| Key words: carbon paste electrode solid paraffin platinum hydrogen peroxide |
