Bismuth film electrode at a silver solid amalgam substrate as a new tool for voltammetric determination of electrochemically reducible organic compounds

Dana Deýlová, Vlastimil Vyskočil, Jiří Barek, Anastasios Economou

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

New type of bismuth film electrode prepared by electrodeposition of bismuth film on a silver solid amalgam substrate (BiF-AgSAE) was tested as a sensor for voltammetric determination of electrochemically reducible organic substances using 2-amino-6-nitrobenzothiazole (ANBT) as a model analyte. Using the optimized conditions (a 9:1 (v/v) mixture of aqueous Britton-Robinson buffer solution (pH 10.0) and methanol), the limits of quantification are 0.16 μmol L-1 for direct current voltammetry (DCV) and 0.22 μmol L -1 for differential pulse voltammetry (DPV). The obtained calibration dependences are linear in the concentration range from 0.2 to 100 μmol L-1 and the practical applicability of the newly developed electrode for the direct determination of ANBT in tap and mineral water model samples was confirmed in the concentration range from 0.2 to 10 μmol L-1.

Original languageEnglish
Pages (from-to)68-74
Number of pages7
JournalTalanta
Volume102
DOIs
Publication statusPublished - 15 Dec 2012
Externally publishedYes

Keywords

  • 2-amino-6-nitrobenzothiazole
  • Bismuth film electrode
  • Differential pulse voltammetry
  • Direct current voltammetry
  • Silver solid amalgam substrate
  • Tap and mineral water samples

ASJC Scopus subject areas

  • Analytical Chemistry

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