Published November 2019 | Version v1
Journal article

Electrochemical sensing of histamine using a glassy carbon electrode modified with multiwalled carbon nanotubes decorated with Ag-Ag2O nanoparticles

  • 1. Rajamangala University of Technology Isan, Applied Chemistry Department, Faculty of Sciences and Liberal Arts (Thailand)
  • 2. University College Cork, Innovative Chromatography Group, Irish Separation Science Cluster (ISSC), School of Chemistry and the Analytical & Biological Chemistry Research Facility (ABCRF) (Ireland)

Description

A glassy carbon electrode (GCE) was modified with a nanocomposite consisting of multiwalled carbon nanotubes (MWCNTs) loaded with silver-argentous oxide nanoparticles (Ag-Ag2O). The electrode is shown as a viable tool for sensing histamine using differential pulse voltammetry (DPV). The modified GCE, best operated at a potential of 0.97 V (vs. Ag/AgCl) shows higher electrocatalytic activity compared to GCEs modified with MWCNTs or Ag-Ag2O only. Under the optimum conditions, the detection limit is 2 μg⋅L−1 (0.18 μM) and the response is linear in the 5 mg⋅L−1 to 200 mg⋅L−1 histamine concentration range. Sodium chloride, putrescine and cadaverine, commonly present in biological samples and foods, do not interfere. Other performance features include good recoveries, fabrication reproducibility and operational/storage stability. The modified GCE was applied for determination of histamine in fish sauce samples.

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Additional details

Identifiers

Publishing Information

Journal Title
Mikrochimica Acta
Journal Volume
186
Journal Issue
11
Journal Page Range
p. 1-10
ISSN
0026-3672
CODEN
MIACAQ

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Copyright
Copyright (c) 2019 Springer-Verlag GmbH Austria, part of Springer Nature