Polarographic and voltammetric determination of 1-(4-methoxyphenyl)-3-methyltriazene

Jiří Barek, Eva Pertileová, Viktor Mejstřík, Josino C. Moreira, Jiří Zima

Research output: Contribution to journalArticle

Abstract

The polarographic behaviour of 1-(4-methoxyphenyl)-3-methyltriazene in a mixed aqueous-methanolic medium was investigated by last polarography and differential pulse polarography at a dropping mercury electrode, constant-potential coulometry at a large area mercury electrode and cyclic voltammetry at a hanging mercury drop electrode. A mechanism has been proposed for its polarographic reduction and optimal conditions have been found for its determination by last polarography in the concentration range 2-100 μmol l-1 and by differential pulse polarography at a dropping mercury electrode, differential pulse voltammetry at a hanging mercury drop electrode and linear scan voltammetry at a hanging mercury drop electrode in the concentration range 0.2-100 μmol l-1. The sensitivity of the determination can be further improved through adsorptive accumulation of the test substance on the surface of the hanging mercury drop electrode; fifteen-second accumulation in stirred solution allows determination in the range 0.01-0.1 μmol l-1.

Original languageEnglish
Pages (from-to)107-119
Number of pages13
JournalCollection of Czechoslovak Chemical Communications
Volume61
Issue number1
DOIs
Publication statusPublished - 1 Jan 1996
Externally publishedYes

Keywords

  • 1-(4-Methoxyphenyl)-3-methyltriazine
  • Adsorptive stripping voltammetry
  • Differential pulse polarography

ASJC Scopus subject areas

  • Chemistry(all)

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