期刊
ELECTROANALYSIS
卷 21, 期 23, 页码 2607-2610出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/elan.200900228
关键词
Salsolinol; Uric acid; Ascorbic acid; Functionalized multiwalled carbon nanotubes; Gold; Nanoparticles
This work demonstrates gold nanoparticles (AuNPs)/functionalized multiwalled carbon nanotubes (f-MWCNT) composite film modified gold electrode via covalent-bonding interaction self-assembly technique for simultaneous determination of salsolinol (Sal) and uric Acid (UA) in the presence of high concentration of ascorbic acid (AA). In pH 7.0 PBS, the composite film modified electrode exhibits excellent voltammetric response for Sal and UA, while AA shows no voltammetric response. The oxidation peak current is linearly increased with concentrations of Sal from 0.24-11.76 mu mol L-1 and of UA from 3.36-96.36 mu mol L-1, respectively. The detection limits of Sal and UA is 3.2 x 10(-8) mol L-1 and 1.7 x 10(-7) mol L-1, respectively.
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