期刊
ELECTROANALYSIS
卷 21, 期 8, 页码 939-943出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/elan.200804495
关键词
Gold nanoparticles; Electrodeposition; Electrocatalytic behavior; Amperometric detection; Morphine
资金
- National Natural Science Foundation of China [30872442]
- Natural Science Foundation of Jiangsu Committee of Education [07KJB150100]
A gold nanoparticles (AuNPs) modified indium tin oxide (ITO) film coated glass electrode was prepared via a novel electrochemical deposition technique. The UV-visible spectrum and SEM indicated that AuNPs on ITO electrode surface were spherical shape and quite symmetric distributed. The modified electrode exhibited excellent catalytic with the MO concentrations ranging from 8.0 x 10(-7) to 1.6 x 10 (5) M, the detection limit was 2.1 x 10 (7) M. The modified electrode also exhibited high stability and reproducibility. The average recoveries of detection MO in human urine were ranged between 91.95% and 92.23%, and the RSD was less than 3.68% (n - 5).
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