Electrochemical detection of dopamine using porphyrin-functionalized graphene
文献类型：期刊论文
| 作者 | Wu L ; Feng LY ; Ren JS ; Qu XG |
| 刊名 | biosensors & bioelectronics
 |
| 出版日期 | 2012 |
| 卷号 | 34期号:1页码:57-62 |
| 关键词 | ASCORBIC-ACID SELECTIVE DETECTION NONCOVALENT FUNCTIONALIZATION ELECTRODE |
| ISSN号 | 0956-5663 |
| 通讯作者 | qu xg |
| 中文摘要 | a new type of porphyrin-functionalized graphene was synthesized and used for highly selective and sensitive detection of dopamine (da). the aromatic pi-pi stacking and electrostatic attraction between positively-charged dopamine and negatively-charged porphyrin-modified graphene can accelerate the electron transfer whereas weakening ascorbic acid (aa) and uric acid (ua) oxidation on the porphyrin-functionalized graphene-modified electrode. differential pulse voltammetry was used for electrochemical detection, the separation of the oxidation peak potentials for aa-da, da-ua and ua-aa is about 188 mv, 144 mv and 332 mv, which allows selectively determining da. the detection limit of da can be as low as 0.01 mu m. more importantly, the sensor we presented can detect da in the presence of large excess of ascorbic acid and uric acid. with good sensitivity and selectivity, the present method was applied to the determination of da in real hydrochloride injection sample, human urine and serum samples, respectively, and the results was satisfactory. (c) 2012 elsevier b.v. all rights reserved. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| 公开日期 | 2013-05-22 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/48220]  |
| 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 | Wu L,Feng LY,Ren JS,et al. Electrochemical detection of dopamine using porphyrin-functionalized graphene[J]. biosensors & bioelectronics,2012,34(1):57-62. |
| APA | Wu L,Feng LY,Ren JS,&Qu XG.(2012).Electrochemical detection of dopamine using porphyrin-functionalized graphene.biosensors & bioelectronics,34(1),57-62. |
| MLA | Wu L,et al."Electrochemical detection of dopamine using porphyrin-functionalized graphene".biosensors & bioelectronics 34.1(2012):57-62. |
入库方式： OAI收割
来源：长春应用化学研究所
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