Graphene Nanosheets Modified Glassy Carbon Electrode as a Highly Sensitive and Selective Voltammetric Sensor for Rutin

被引：46
|
作者：
Du, Haijun [1 ,2 ]
Ye, Jianshan [1 ]
Zhang, Jiaqi [3 ]
Huang, Xiaodan [4 ,5 ]
Yu, Chengzhong [4 ,5 ]
机构：
[1] S China Univ Technol, Coll Chem & Chem Engn, Guangzhou 510640, Peoples R China
[2] Guizhou Univ Nationalities, Sch Chem & Environm Sci, Guiyang 550025, Peoples R China
[3] Tianjin Univ Technol, Coll Environm Sci & Safety Engn, Tianjin 300071, Peoples R China
[4] Fudan Univ, Dept Chem, Shanghai 200433, Peoples R China
[5] Fudan Univ, Shanghai Key Lab Mol Catalysis & Innovat Mat, Shanghai 200433, Peoples R China
来源：
ELECTROANALYSIS | 2010年 / 22卷 / 20期
关键词：
Rutin; Graphene nanosheets; Electrocatalysis; Sensors; Stripping differential pulse voltammetry; SOLID-PHASE EXTRACTION; DIRECT ELECTROCHEMISTRY; GLUCOSE-OXIDASE; ASCORBIC-ACID; GRAPHITE; REDUCTION; QUERCETIN; PLATFORM;
D O I：
10.1002/elan.201000110
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Graphene nanosheets modified glassy carbon electrode (GNs/GCE) was fabricated as voltammetric sensor for rutin with good sensitivity, selectivity and reproducibility. The sensor exhibits an adsorption-controlled, reversible two-proton and two electron transfer reaction for the oxidation of rutin with a peak-to-peak separation (Delta E-p) of 26 mV as revealed by cyclic voltammetry. Moreover, the redox peak current increased about 14 times than that on bare glassy carbon electrode (GCE). The linear response of the sensor is from 1 x 10(-7) to 1 x 10(-5) M with a detection limit of 2.1 x 10(-8) M (S/N = 3). The method was successfully applied to determine rutin in tablets with satisfied recovery.
引用
收藏
页码：2399 / 2406
页数：8
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