期刊
ANALYTICAL METHODS
卷 7, 期 16, 页码 6896-6903出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ay01329a
关键词
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资金
- National Science Fund of China [21275116]
- Specialized Research Fund for Doctoral Program of Higher Education [20126101120023]
- Natural Science Fund of Shaanxi Province in China [2012JM2013, 2013JM2006, 2013KJXX-25]
- Fund of Shaanxi Province Educational Committee of China [12JK0576]
- Scientific Research Foundation of Shaanxi Provincial Key Laboratory [2010JS088, 11JS080, 12JS087, 13JS097]
A facile and effective electrochemical sensing technique was developed by the electrodeposition of Prussian blue on polyaniline (PANI) coated halloysite nanotubes (HNTs). Owing to the special structure of the PB-PANI-HNT nanocomposite, the sensor possessed excellent electrocatalytic ability towards H2O2 reduction. The amperometric study demonstrated that the H2O2 sensor exhibits good performance with a linearity in the range from 4 mu M to 1064 mu M. The limit of detection (LOD) was 0.226 mu M (S/N = 3) and the sensitivity was calculated to be 0.98 mu A (mu M-1 cm(-2)). Moreover, the interference from the common interfering species such as glucose, ascorbic acid, dopamine and uric acid can be effectively avoided, and the sensors exhibit long-term stability, thus holding promise for the development of amperometric biosensors.
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