Voltammetric Determination of Carmoisine in Soft Drinks

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3 Citations (Scopus)

Abstract

A voltammetric study of the electrochemical behavior of red food azo dye Carmoisine on a glassy carbon electrode (GCE) is performed. The influence of various factors on the cathode signal of the dye is shown: pH and values of accumulation time and potential sweep rate. The operating conditions of Carmoisine identification in model media are selected: pH = 1.65, Eacc = –0.1 V, tacc = 10 s, W = 100 mV/s. A linear dependence of the electrolytic reduction current of the dye on its concentration at –0.15 V is observed within 0.05–0.5 mg/L; detection limit of Carmoisine is 0.02 mg/L. A comparative determination of Carmoisine in soft drinks is performed by voltammetric and spectrophotometric methods.

Original languageEnglish
Pages (from-to)1427-1431
Number of pages5
JournalInorganic Materials
Volume53
Issue number14
DOIs
Publication statusPublished - 1 Dec 2017

Keywords

  • azo dyes
  • Carmoisine
  • soft drinks
  • spectrophotometry
  • voltammetry

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Inorganic Chemistry
  • Metals and Alloys
  • Materials Chemistry

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