Development and application of a nano-alumina based nitric oxide sensor

被引：23
作者：
He, Qiong [1 ,2 ,3 ]
Zheng, Dongyun [1 ]
Hu, Shengshui [1 ,3 ]
机构：
[1] Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Peoples R China
[2] Qujing Normal Coll, Dept Chem, Qujing 655011, Peoples R China
[3] Chinese Acad Sci, State Key Lab Transducer Technol, Beijing 100080, Peoples R China
来源：
MICROCHIMICA ACTA | 2009年 / 164卷 / 3-4期
关键词：
Nano-alumina; Glassy carbon electrode; Nitric oxide; Sensor; NICKEL PORPHYRIN FILMS; ELECTROCATALYTIC OXIDATION; DIRECT ELECTROCHEMISTRY; NANOTUBES; BIOSENSOR; MATRIX;
D O I：
10.1007/s00604-008-0086-2
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A novel sensor is described for the sensitive determination of nitric oxide (NO) based on a nano-alumina (nano-Al2O3) modified glassy carbon electrode. Cyclic voltammetry, chronocoulometry and linear sweep voltammetry were used to investigate the electrochemical response of the sensor and the reaction mechanism of NO at the nano-Al2O3 film based sensor. The surface morphologies of different electrodes were characterized by scanning electron microscopy. Under optimal working conditions, the peak current of NO oxidation linearly increased with its concentration in the range 0.04 similar to 210 mu mol L-1 with a detection limit of 7.2 nM. The nano-Al2O3 film based sensor was applied to the determination of NO released from rat lung, and the results were satisfactory, which indicates that it may have practical applications in NO monitoring systems.
引用
收藏
页码：459 / 464
页数：6
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