Nanomolar detection of dopamine in the presence of ascorbic acid at β-cyclodextrin/graphene nanocomposite platform

被引：185

作者：

Tan, Lin ^{[1
]}

Zhou, Kai-Ge ^{[1
]}

Zhang, Yong-Hui ^{[1
]}

Wang, Hang-Xing ^{[1
]}

Wang, Xue-Dong ^{[1
]}

Guo, Yun-Fan ^{[1
]}

Zhang, Hao-Li ^{[1
]}

机构：

[1] Lanzhou Univ, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2010年 / 12卷 / 04期

关键词：

Graphene sheet; beta-Cyclodextrin; Dopamine; Electrochemical sensor; Nanocomposite; NANOTUBE-MODIFIED ELECTRODES; PYROLYTIC-GRAPHITE; CARBON; REDUCTION; PASTE; OXIDE;

D O I：

10.1016/j.elecom.2010.01.042

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Nanocomposite of beta-cyclodextrin and graphene sheet (beta-CD/GS) was successfully prepared, which exhibited high stability in aqueous solution. When used in electrochemical detection of dopamine, the beta-CD/GS modified carbon electrode showed low detection limit, broad linear range, along with good ability to suppress the background current from large excess ascorbic acid. The electrochemical reaction of dopamine on the beta-CD/GS showed a mass diffusion-controlled process, which was different from the adsorption-controlled process on the unmodified graphene sheet. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：557 / 560

页数：4

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