Carbon dots and chitosan composite film based biosensor for the sensitive and selective determination of dopamine

被引：137

作者：

Huang, Qitong ^{[1
]}

Hu, Shirong ^{[1
,2
]}

Zhang, Hanqiang ^{[1
]}

Chen, Jianhua ^{[1
,2
]}

He, Yasan ^{[1
]}

Li, Feiming ^{[1
]}

Weng, Wen ^{[1
,2
]}

Ni, Jiancong ^{[1
]}

Bao, Xiuxiu ^{[1
]}

Lin, Yi ^{[1
]}

机构：

[1] Zhangzhou Normal Univ, Dept Chem & Environm Sci, Zhangzhou 363000, Peoples R China

[2] Zhangzhou Normal Univ, Fujian Prov Univ Key Lab Analyt Sci, Zhangzhou 363000, Peoples R China

来源：

ANALYST | 2013年 / 138卷 / 18期

关键词：

GRAPHENE MODIFIED ELECTRODES; ASCORBIC-ACID; CAPILLARY-ELECTROPHORESIS; ELECTROCHEMICAL DETECTION; FIBER MICROELECTRODES; NANOTUBES; SERUM; ADSORPTION; NANODOTS; HPLC;

D O I：

10.1039/c3an00510k

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A simple, sensitive and reliable dopamine (DA) biosensor was developed based on a carbon dots (CDs) and chitosan (CS) composite film modified glassy carbon electrode (CDs-CS/GCE). Under optimal conditions, the CDs-CS/GCE showed a better electrochemical response for the detection of DA than that of the glassy carbon electrode (GCE). The oxidation peak current (I-pa) of DA was linear with the concentration of DA in the range from 0.1 mu M to 30.0 mu M with the limit of detection as 11.2 nM (3S/N). The CDs-CS/GCE was applied to the detection of DA content in an injection solution of DA with satisfactory results.

引用

页码：5417 / 5423

页数：7

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