期刊
MICROCHIMICA ACTA
卷 188, 期 1, 页码 -出版社
SPRINGER WIEN
DOI: 10.1007/s00604-020-04655-3
关键词
Oxycodone; Electrochemical sensor; Polymelamine formaldehyde; Graphene oxide nanocomposite
资金
- Research Council of Isfahan University of Technology (IUT)
The PMF/GO nanocomposite was effectively employed for the ultrasensitive and selective electrochemical detection of oxycodone, offering a linear relationship with a detection limit of 2.0 nmol L-1. The sensor was successfully tested in human urine and serum samples for OXC detection.
Polymelamine formaldehyde/graphene oxide (PMF/GO) nanocomposite was used, for the first time, to study the ultrasensitive and selective electrochemical detection of oxycodone (OXC). The successful characterization of PMF/GO was verified based on scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared (FT-IR), X-ray diffraction (XRD), energy-dispersive spectroscopy (EDS), and Raman spectroscopy. The modified GCE (PMF/GO-GCE) proved its electrocatalytic effect on OXC determination according to cyclic, linear sweep, and differential pulse voltammetry (CV, LSV, and DPV) and electrochemical impedance spectroscopy (EIS) studies. The developed sensor under optimal conditions offered a linear relationship in a limited range of 0.01 to 45 mu mol L-1 with the limit of detection (LOD) of 2.0 nmol L-1. The proposed PMF/GO-GCE sensor was effectively employed for the OXC detection in human urine and serum samples.
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