Electrochemical activity of methionine at graphite electrode modified with gold nanoparticles

D. O. Perevezentseva, K. V. Skirdin, E. V. Gorchakov, V. I. Bimatov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Citations (Scopus)

Abstract

The "inverse" cathodic peak of gold nanoparticles is observed in the reaction mixture used to obtain gold nanoparticles HAuCl4:Na3C6H5O7:NaBH4=125:8:1 and accumulation time is 90 s. The conditions in which methionine has the greatest electrochemical activity were determined. They are as follows: the molar ratio of reagents HAuCl4:Na3C6H5O7:NaBH4=125:8:1 and accumulation time is 90 s, 0.1 M NaOH. The mechanism of methionine oxidation is proposed to be on the surface of the graphite electrode modified with gold nanoparticles in 0.1 M NaOH. The determination limit of methionine is 0.7 •10-14 M. The proposed method is simple, sensitive, and does not need toxic substances.

Original languageEnglish
Title of host publicationKey Engineering Materials
PublisherTrans Tech Publications Ltd
Pages563-568
Number of pages6
Volume685
ISBN (Print)9783038357087
DOIs
Publication statusPublished - 2016
Event4th International Conference for Young Scientists High Technology: Research and Applications, HTRA 2015 - Tomsk, Russian Federation
Duration: 21 Apr 201524 Apr 2015

Publication series

NameKey Engineering Materials
Volume685
ISSN (Print)10139826

Other

Other4th International Conference for Young Scientists High Technology: Research and Applications, HTRA 2015
CountryRussian Federation
CityTomsk
Period21.4.1524.4.15

Keywords

  • Cyclic voltammetry
  • Gold nanoparticles
  • Graphite electrode
  • Methionine

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Perevezentseva, D. O., Skirdin, K. V., Gorchakov, E. V., & Bimatov, V. I. (2016). Electrochemical activity of methionine at graphite electrode modified with gold nanoparticles. In Key Engineering Materials (Vol. 685, pp. 563-568). (Key Engineering Materials; Vol. 685). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/KEM.685.563