Evaluation of a nanocomposite based on reduced graphene oxide and gold nanoparticles as an electrochemical platform for detection of sulfamethazine

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2019-01-01

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A nanocomposite based on reduced graphene oxide (rGO) and gold nanoparticles (AuNPs) was synthesized by the microwave-assisted hydrothermal method and applied in the determination of sulfamethazine (SMZ) in swine effluent using a glassy carbon (GC) electrode. The rGO-AuNPs nanocomposite was characterized morphologically, electrochemically and spectrochemically, showing that rGO was modified with the AuNPs. The GC/rGO-AuNPs electrode was optimized for the determination of SMZ, achieving detection limits of 0.1 µmol L−1 . The proposed sensor was successfully applied to the determination of SMZ in synthetic swine effluent samples.

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Gold nanoparticles, Graphene, Nanocomposite, Sulfamethazine

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Inglês

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Journal of Composites Science, v. 3, n. 2, 2019.

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http://hdl.handle.net/11449/205146

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