Voltammetric determination of phenylglyoxylic acid in urine using graphite composite electrode

Tomáš Navrátil, Zdeňka Šenholdová, Kumaran Shanmugam, Jiří Barek

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

A composite electrode prepared from graphite powder and epoxy resin was applied as a working electrode for the determination of phenylglyoxylic acid (one of the metabolites of styrene) in human urine. Cathodic differential pulse stripping voltammetry was used and optimum conditions have been found giving the limit of determination about 5 mg L-1. All results were compared with those obtained using hanging mercury drop electrode. For the confirmation of suggested mechanism of the electrochemical reaction the elimination voltammetry with linear scan was used.

Original languageEnglish
Pages (from-to)201-206
Number of pages6
JournalElectroanalysis
Volume18
Issue number2
DOIs
Publication statusPublished - 1 Jan 2006
Externally publishedYes

Fingerprint

Graphite
Voltammetry
Electrodes
Acids
Composite materials
Epoxy Resins
Styrene
Metabolites
Mercury
Epoxy resins
Powders
phenylglyoxylic acid

Keywords

  • Elimination voltammetry with linear scan
  • EVLS
  • Graphite composite electrode
  • Phenylglyoxylic acid
  • Styrene
  • Vinylbenzene
  • Voltammetry

ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry

Cite this

Voltammetric determination of phenylglyoxylic acid in urine using graphite composite electrode. / Navrátil, Tomáš; Šenholdová, Zdeňka; Shanmugam, Kumaran; Barek, Jiří.

In: Electroanalysis, Vol. 18, No. 2, 01.01.2006, p. 201-206.

Research output: Contribution to journalArticle

Navrátil, Tomáš ; Šenholdová, Zdeňka ; Shanmugam, Kumaran ; Barek, Jiří. / Voltammetric determination of phenylglyoxylic acid in urine using graphite composite electrode. In: Electroanalysis. 2006 ; Vol. 18, No. 2. pp. 201-206.
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