期刊
MICROCHIMICA ACTA
卷 173, 期 1-2, 页码 27-32出版社
SPRINGER WIEN
DOI: 10.1007/s00604-010-0509-8
关键词
Nickel hexacyanoferrate; Multi-walled carbon nanotubes; Uric acid; Cyclic voltammetry; Modified electrode
资金
- National Natural Science Foundation of China [20675001, 20901003, 21073001, 21005001]
- Natural Science Foundation of Anhui [KJ2009B013Z]
- Anhui Key Laboratory of Controllable Chemistry Reaction & Material Chemical Engineering [OFCC0905]
- Anhui Normal University [2009xqnzc19]
An electrode sensitive to uric acid was prepared by electrodeposition of nickel(II) hexacyanoferrate(III) on the surface of a glassy carbon electrode modified with multi-walled carbon nanotubes. The morphology of the material was characterized by scanning electron microscopy and Fourier transform infrared spectrometry. The modified electrode were characterized via cyclic voltammetry and amperometry (i - t). It exhibited efficient electron transfer ability and a strong and fast (< 3 s) response towards uric acid which is linear in the range from 0.1 mu M to 18 mu M, with a lower detection limit of 50 nM (at an S/N ratio of 3). In addition, the electrode exhibited good reproducibility and long-term stability.
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