Effect of buffer capacity on electrochemical behavior of dopamine and ascorbic acid
文献类型：期刊论文
| 作者 | Wang JG ; Wang LL ; Wang YL ; Yang WW ; Jiang LL ; Wang EK |
| 刊名 | journal of electroanalytical chemistry
 |
| 出版日期 | 2007 |
| 卷号 | 601期号:1-2页码:107-111 |
| 关键词 | CARBON-FIBER MICROELECTRODES CYCLIC VOLTAMMETRY ELECTRODES CATECHOLAMINES OXIDATION CELLS DROP |
| ISSN号 | 0022-0728 |
| 通讯作者 | wang ek |
| 中文摘要 | it is well known that the electrochemical oxidation of dopamine and ascorbic acid includes the proton and electron transfers at a glassy carbon electrode and their redox potentials are dependent on the ph of solution. when the concentration of the buffer is not enough to neutralize the protons produced by electrochemical oxidation of dopamine and ascorbic acid, two peaks of them can be observed in cyclic voltammograms. the height of the new peak is in proportion to the concentration of proton acceptor including hpo42-, 2,4,6-trimethylpyridine, tris (hydroxymethyl) aminomethane. moreover, the potential of it is dependent on the type and the concentration of buffer at the same ph of bulk solution. however, this phenomenon cannot be attributed to the interaction between proton acceptor and dopamine or ascorbic acid. so, we think the phenomenon is caused by the acute change of ph at the surface of working electrode. similar results were also observed in the rotating disk voltammograms. it can be concluded that the electrochemical behavior of some compounds is dependent on the concentration of buffer when this concentration is not enough to neutralize the protons produced in electrochemical oxidation. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000245386200014 |
| 公开日期 | 2010-07-13 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/13187]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Wang JG,Wang LL,Wang YL,et al. Effect of buffer capacity on electrochemical behavior of dopamine and ascorbic acid[J]. journal of electroanalytical chemistry,2007,601(1-2):107-111. |
| APA | Wang JG,Wang LL,Wang YL,Yang WW,Jiang LL,&Wang EK.(2007).Effect of buffer capacity on electrochemical behavior of dopamine and ascorbic acid.journal of electroanalytical chemistry,601(1-2),107-111. |
| MLA | Wang JG,et al."Effect of buffer capacity on electrochemical behavior of dopamine and ascorbic acid".journal of electroanalytical chemistry 601.1-2(2007):107-111. |
入库方式： OAI收割
来源：长春应用化学研究所
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