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Voltammetric sensing of sulfamethoxazole using a glassy carbon electrode modified with a graphitic carbon nitride and zinc oxide nanocomposite

A voltammetric sensor is described for the determination the antibiotic sulfamethoxazole (SMZ). It is based on the use of a glassy carbon electrode (GCE) modified with a nanocomposite prepared from graphitic carbon nitride and zinc oxide (g-C 3 N 4 /ZnO). The nanorod-like ZnO nanostructure were synt... Full description

Journal Title: Microchimica Acta 2018, Vol.185(8), pp.1-9
Main Author: Balasubramanian, Paramasivam
Other Authors: Settu, Ramki , Chen, Shen-Ming , Chen, Tse-Wei
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0026-3672 ; E-ISSN: 1436-5073 ; DOI: 10.1007/s00604-018-2934-z
Link: http://dx.doi.org/10.1007/s00604-018-2934-z
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recordid: springer_jour10.1007/s00604-018-2934-z
title: Voltammetric sensing of sulfamethoxazole using a glassy carbon electrode modified with a graphitic carbon nitride and zinc oxide nanocomposite
format: Article
creator:
  • Balasubramanian, Paramasivam
  • Settu, Ramki
  • Chen, Shen-Ming
  • Chen, Tse-Wei
subjects:
  • Sulfonamide drug
  • Sonochemical synthesis
  • Electrocatalysis
  • High electron transfer rate
  • Physiological fluids
ispartof: Microchimica Acta, 2018, Vol.185(8), pp.1-9
description: A voltammetric sensor is described for the determination the antibiotic sulfamethoxazole (SMZ). It is based on the use of a glassy carbon electrode (GCE) modified with a nanocomposite prepared from graphitic carbon nitride and zinc oxide (g-C 3 N 4 /ZnO). The nanorod-like ZnO nanostructure were synthesized sonochemically. The g-C 3 N 4 /ZnO nanocomposite was then prepared by mixing g-C 3 N 4 with ZnO, followed by ultrasonication. The morphology and structure of the nanocomposite were characterized by X-ray diffraction, Fourier-transform infrared spectroscopy and transmission electron microscopy. Under the optimal conditions, the response of the electrode, typically measured between 0.8 and 0.9 V (vs. Ag/AgCl), increases linearly in the 20 nM to 1.1 mM SMZ concentration range, and the lower detection limit is 6.6 nM. This is better than that of many previously reported sensors for SMZ. The modified electrode is highly selective, well reproducible and maintains its activity for at least 4 weeks. It was applied to the determination of SMZ in spiked human blood serum samples in with satisfactory results. Graphical abstract Schematic presentation of the voltammetric sensor for sulfamethoxazole. It consists of a glassy carbon electrode modified with a nanocomposite prepared from graphitic carbon nitride (g-C 3 N 4 /ZnO) that was supported with zinc oxide nanorods.
language: eng
source:
identifier: ISSN: 0026-3672 ; E-ISSN: 1436-5073 ; DOI: 10.1007/s00604-018-2934-z
fulltext: fulltext
issn:
  • 1436-5073
  • 14365073
  • 0026-3672
  • 00263672
url: Link


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titleVoltammetric sensing of sulfamethoxazole using a glassy carbon electrode modified with a graphitic carbon nitride and zinc oxide nanocomposite
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subjectSulfonamide drug ; Sonochemical synthesis ; Electrocatalysis ; High electron transfer rate ; Physiological fluids
descriptionA voltammetric sensor is described for the determination the antibiotic sulfamethoxazole (SMZ). It is based on the use of a glassy carbon electrode (GCE) modified with a nanocomposite prepared from graphitic carbon nitride and zinc oxide (g-C 3 N 4 /ZnO). The nanorod-like ZnO nanostructure were synthesized sonochemically. The g-C 3 N 4 /ZnO nanocomposite was then prepared by mixing g-C 3 N 4 with ZnO, followed by ultrasonication. The morphology and structure of the nanocomposite were characterized by X-ray diffraction, Fourier-transform infrared spectroscopy and transmission electron microscopy. Under the optimal conditions, the response of the electrode, typically measured between 0.8 and 0.9 V (vs. Ag/AgCl), increases linearly in the 20 nM to 1.1 mM SMZ concentration range, and the lower detection limit is 6.6 nM. This is better than that of many previously reported sensors for SMZ. The modified electrode is highly selective, well reproducible and maintains its activity for at least 4 weeks. It was applied to the determination of SMZ in spiked human blood serum samples in with satisfactory results. Graphical abstract Schematic presentation of the voltammetric sensor for sulfamethoxazole. It consists of a glassy carbon electrode modified with a nanocomposite prepared from graphitic carbon nitride (g-C 3 N 4 /ZnO) that was supported with zinc oxide nanorods.
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abstractA voltammetric sensor is described for the determination the antibiotic sulfamethoxazole (SMZ). It is based on the use of a glassy carbon electrode (GCE) modified with a nanocomposite prepared from graphitic carbon nitride and zinc oxide (g-C 3 N 4 /ZnO). The nanorod-like ZnO nanostructure were synthesized sonochemically. The g-C 3 N 4 /ZnO nanocomposite was then prepared by mixing g-C 3 N 4 with ZnO, followed by ultrasonication. The morphology and structure of the nanocomposite were characterized by X-ray diffraction, Fourier-transform infrared spectroscopy and transmission electron microscopy. Under the optimal conditions, the response of the electrode, typically measured between 0.8 and 0.9 V (vs. Ag/AgCl), increases linearly in the 20 nM to 1.1 mM SMZ concentration range, and the lower detection limit is 6.6 nM. This is better than that of many previously reported sensors for SMZ. The modified electrode is highly selective, well reproducible and maintains its activity for at least 4 weeks. It was applied to the determination of SMZ in spiked human blood serum samples in with satisfactory results. Graphical abstract Schematic presentation of the voltammetric sensor for sulfamethoxazole. It consists of a glassy carbon electrode modified with a nanocomposite prepared from graphitic carbon nitride (g-C 3 N 4 /ZnO) that was supported with zinc oxide nanorods.
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