期刊
ELECTROANALYSIS
卷 28, 期 3, 页码 611-619出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/elan.201500495
关键词
Flavonoids; Calix[4]arene; Reduced graphene oxide; Ruthenium nanoparticles; Determination
In this report, ruthenium nanoparticles (RuNPs) and calix[4]amidocrown-5 (C4A5) were synthesized and grafted onto the surface of reduced graphene oxide (RGO) nanocomposite (RuNPs/C4A5/RGO). The morphologies of the nanocomposites were characterized by transmission electron microscope, scanning electron microscope, atomic force microscope, electrochemical impedance spectroscopy and x-ray photoelectron spectroscopy. The electrochemical experiments were performed by cyclic voltammetry, electrochemical impedance spectroscopy and square wave voltammetry. The simultaneous determination of quercetin, rutin and morin was performed on glassy carbon electrode modified with RuNPs/C4A5/RGO (RuNPs/C4A5/RGO/GCE). The linearity ranges and the detection limits of QR, RT and MR were 1.0x10(-10)-1.0x10(-8)M and 2.0x10(-11)M respectively.
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