Sensitive electrochemical sensor for hydrogen peroxide using Fe3O4 magnetic nanoparticles as a mimic for peroxidase

被引：48
|
作者：
Zhang, Zhanxia [1 ,2 ]
Zhu, Hui [1 ]
Wang, Xiaolei [1 ]
Yang, Xiurong [1 ]
机构：
[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Jilin, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
来源：
MICROCHIMICA ACTA | 2011年 / 174卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
Fe3O4 magnetic nanoparticle; Peroxidase mimic; Hydrogen peroxide; Amperometric; NANOFIBERS MODIFIED ELECTRODE; ASCORBIC-ACID; URIC-ACID; BIOSENSOR; CHITOSAN; FILM; IMMOBILIZATION; DOPAMINE; MATRIX; H2O2;
D O I：
10.1007/s00604-011-0600-9
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A sensor for hydrogen peroxide is described that is based on an indium tin oxide electrode modified with Fe3O4 magnetic nanoparticles which act as a mimic for the enzyme peroxidase and greatly improve the analytical performance of the sensor. The amperometric current is linearly related to the concentration of H2O2 in the range from 0.2 mM to 2 mM, the regression equation is y = -0.5-1.82x, the correlation coefficient is 0.998 (n = 3), and the detection limit is 0.01 mM (S/N = 3). The sensor exhibits favorable selectivity and excellent stability.
引用
收藏
页码：183 / 189
页数：7
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