Selective determination of dopamine in the presence of ascorbic acid at a multi-wall carbon nanotube-poly(3,5-dihydroxy benzoic acid) film modified electrode
文献类型：期刊论文
| 作者 | Zhou, Xia; Zheng, Na; Hou, Shurong; Li, Xiangjun; Yuan, Zhuobin |
| 刊名 | Journal of electroanalytical chemistry
 |
| 出版日期 | 2010-04-01 |
| 卷号 | 642期号:1页码:30-34 |
| 关键词 | Modified electrode Mwcnt Poly(dba) Dopamine Ascorbic acid |
| ISSN号 | 1572-6657 |
| DOI | 10.1016/j.jelechem.2010.01.028 |
| 通讯作者 | Zhou, xia(chinazhouxia@163.com) |
| 英文摘要 | A sensitive and selective method for determination of dopamine (da) using multi-wall carbon nanotube (mwcnt)-poly(3,5-dihydroxy benzoic acid) [poly(dba)] modified electrode is developed. the modified electrode shows excellent electrocatalytic activity toward the oxidation of dopamine in phosphate buffer solutions at ph 7.4. using cyclic voltammetry, the linear range of 1 x 10(-7)-7.0 x 10(-5) m in the interference of 500 mu m ascorbic acid (aa) and the detection limit of 1.0 x 10(-8) m were estimated for the measurement of da in ph 7.4 phosphate buffer solutions. the value of da current retained 98.36% of the initial response current after the modified electrode exposed to the air for one week. the interference studies showed that the modified electrode excludes effectively large excess of aa. the kinetic characteristics of the transfer of da demonstrated that the electron propagation between da and electrode was accelerated at mwcnt-poly(dba) modified electrode. the work provided a valid and simple approach to selectively detect dopamine in the presence of aa in physiological environment. (c) 2010 elsevier bm. all rights reserved. |
| WOS关键词 | SIMULTANEOUS VOLTAMMETRIC DETECTION ; URIC-ACID ; ELECTROCHEMICAL DETECTION ; SENSITIVE DETERMINATION ; LIQUID-CHROMATOGRAPHY ; NANOTUBE COMPOSITE ; HEMOGLOBIN ; FABRICATION ; SEROTONIN ; BEHAVIOR |
| WOS研究方向 | Chemistry ; Electrochemistry |
| WOS类目 | Chemistry, Analytical ; Electrochemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000276822800006 |
| 出版者 | ELSEVIER SCIENCE SA |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2407639 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhou, Xia |
| 作者单位 | Chinese Acad Sci, Grad Univ, Coll Chem & Chem Engn, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Xia,Zheng, Na,Hou, Shurong,et al. Selective determination of dopamine in the presence of ascorbic acid at a multi-wall carbon nanotube-poly(3,5-dihydroxy benzoic acid) film modified electrode[J]. Journal of electroanalytical chemistry,2010,642(1):30-34. |
| APA | Zhou, Xia,Zheng, Na,Hou, Shurong,Li, Xiangjun,&Yuan, Zhuobin.(2010).Selective determination of dopamine in the presence of ascorbic acid at a multi-wall carbon nanotube-poly(3,5-dihydroxy benzoic acid) film modified electrode.Journal of electroanalytical chemistry,642(1),30-34. |
| MLA | Zhou, Xia,et al."Selective determination of dopamine in the presence of ascorbic acid at a multi-wall carbon nanotube-poly(3,5-dihydroxy benzoic acid) film modified electrode".Journal of electroanalytical chemistry 642.1(2010):30-34. |
入库方式： iSwitch采集
来源：中国科学院大学
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。