| 吡啶类碳离子液体电极对酚磺乙胺的电化学行为及其分析应用 |
| |
| 引用本文： | 上官小东,郑建斌.吡啶类碳离子液体电极对酚磺乙胺的电化学行为及其分析应用[J].分析试验室,2009,28(6). |
| |
| 作者姓名： | 上官小东 郑建斌 |
| |
| 作者单位： | 西北大学分析科学研究所,陕西省电分析化学重点实验室,西安710069 |
| |
| 基金项目： | 国家自然科学基金，高等学校博士学科点专项科研基金 |
| |
| 摘 要： | 用离子液体1-丁基吡啶六氟磷酸盐(BuPyPF6)作为粘合剂构置了碳离子液体修饰电极(BuPyPF6-CILE).在0.05 mol/L H2SO4溶液中,用循环伏安法研究了在BuPyPF6-CILE和传统碳糊电极(TCPE)上酚磺乙胺(ESL)的电化学行为,建立了测定尿样和血清样品中ESL含量的新方法.ESL在BuPyPF6-CILE上的氧化峰电流响应是其在TCPE上的8.7倍,峰电位差降低到0.101 V,电子转移速率常数Ks=0.544 s-1,电极表面平均吸附量为1.66×10-9 mol·cm2.ESL的氧化电流与其浓度在8.0×10-8～2.0×10-6mol/L和5.0×10-6～1.0×10-4mol/L范围内呈线性关系,检出限为3×10-8mol/L(S/N=3).连续5次测定2.0×10-6mol/L ESL溶液的RSD为1.5%.
|
| 关 键 词： | 循环伏安法 碳离子液体电极 酚磺乙胺 |
Electrochemical behaviors of ethamsylate at pyridinium type carbon ionic liquid electrode and its analytic application |
| |
| SHANGGUAN Xiao-dong,ZHENG Jian-bin.Electrochemical behaviors of ethamsylate at pyridinium type carbon ionic liquid electrode and its analytic application[J].Chinese Journal of Analysis Laboratory,2009,28(6). |
| |
| Authors: | SHANGGUAN Xiao-dong ZHENG Jian-bin |
| |
| Abstract: | Carbon ionic liquid electrode has been fabricated by replacing non-conductive organic binders with 1-butyl pyridinium hexafluophosphate.The electrochemical behaviors of ethamsylate(ESL) are investigated in 0.05 mol/L H2SO4 solution at a traditional carbon paste electrode(TCPE) and the proposed electrode by cyclic voltammetry.The peak-to-peak potential separation of ESL reduces to 0.101 V at the proposed electrode.Oxidation peak current response at the proposed electrode enhances 8.7 folds higher than that a... |
| |
| Keywords: | Voltammetry Carbon ionic liquid electrode Ethamsylate |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
