期刊
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
卷 15, 期 3, 页码 519-523出版社
SPRINGER
DOI: 10.1007/s10008-010-1119-4
关键词
Nitric oxide; Osmium complex; Redox polymer; Carbon nanotubes
资金
- Research Grants Council of Hong Kong [HKBU 201804P]
A novel chemically modified electrode based on an osmium complex-containing redox polymer film coated on single-walled carbon nanotube (SWNT) modified glassy carbon electrode (GCE) has been described for the determination of nitric oxide. The reslts showed that the oxidation current increased significantly at the SWNT/redox polymer coated GCE, as compared to that observed on a bare uGCE- and SWNT-modified GCE. Amperometric measurement was carried out at the potential of +0.80 V (vs. Ag vertical bar AgCl) and the current response to NO was found to be directly proportional to its concentration in the range from 2.0 x 10(-7) to 4.0 x 10(-5) M, and the detection limit was estimated to be 5.0 x 10(-8) M.
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