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Evaluation of a Nanocomposite Based on Reduced Graphene Oxide and Gold Nanoparticles as an Electrochemical Platform for Detection of Sulfamethazine

Sao Paulo State University (UNESP), School of Agriculture, Botucatu 18610-034, SP, Brazil
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J. Compos. Sci. 2019, 3(2), 59; https://doi.org/10.3390/jcs3020059
Received: 6 May 2019 / Revised: 29 May 2019 / Accepted: 5 June 2019 / Published: 8 June 2019
(This article belongs to the Special Issue Recent Advances in Graphene-based Nanocomposites)
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Abstract

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. View Full-Text
Keywords: graphene; gold nanoparticles; sulfamethazine; nanocomposite graphene; gold nanoparticles; sulfamethazine; nanocomposite
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Silva, M.; Cesarino, I. Evaluation of a Nanocomposite Based on Reduced Graphene Oxide and Gold Nanoparticles as an Electrochemical Platform for Detection of Sulfamethazine. J. Compos. Sci. 2019, 3, 59.

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