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Abstract
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In this paper, the electrochemically reduced
graphene oxide-poly(amidoamine) hybrid (ErGOPAMAM)
have been used for fabrication of TNT electrochemical
sensor. The prepared modified electrode is characterizedElectroanalysis
with X-ray photoelectron spectroscopy (XPS),
fourier transform infrared spectroscopy (FT-IR), electrochemical
impedance spectroscopy (EIS), energy-dispersive
X-ray (EDX) spectroscopy, scanning electron microscopy
(SEM) and atomic force microscope (AFM). Based
on obtained results, it is can be seen that the ErGOPAMAM/
GCE has high response to TNT than the other
graphene based modified electrodes. The resulting electrochemical
sensor exhibited good response to TNT with
linear range from 0.05 to 1.2 ppm with a low detection
limit of 0.0015 ppm.
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