Electrochemical Determination of Dopamine Using a Mesoporous MnO2/Polypyrrole-Modified Electrode

被引：5
|
作者：
Gan, Tian [1 ]
Sun, Junyong [1 ]
Wu, Wangze [2 ]
Huang, Kejing [1 ]
Zhu, Jianjun [1 ]
机构：
[1] Xinyang Normal Univ, Coll Chem & Chem Engn, Xinyang 464000, Peoples R China
[2] Cent Hosp Wuhan, Dept Lab Med, Wuhan 430014, Peoples R China
来源：
NANOSCIENCE AND NANOTECHNOLOGY LETTERS | 2013年 / 5卷 / 06期
关键词：
Mesoporous MnO2; Polypyrrole; Dopamine; Determination; Modified Electrode; ASCORBIC-ACID; URIC-ACID; OXIDE; NANOPARTICLES; METAL;
D O I：
10.1166/nnl.2013.1580
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A mseoporous MnO2/polypyrrole (MnO2/Ppy)-modified glassy carbon electrode for the determination of dopamine (DA) is described. Owing to the specific mesoporous channels, excellent conductivity and large surface area of the MnO2/Ppy nanohybrid, the MnO2/Ppy-modified electrode greatly increases the oxidation peak current of DA. Based on this, a highly sensitive, rapid and convenient electrochemical method was developed for the determination DA. The linear range is from 3.0 nM to 0.1 mu M and 0.3 mu M to 5.0 mu M, the limit of detection is estimated to be 1.0 nM. The method was successfully used to determine DA in human serum samples.
引用
收藏
页码：673 / 676
页数：4
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