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

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

Результат исследований: Материалы для журналаСтатья

Аннотация

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.

Язык оригиналаАнглийский
Страницы (с-по)107-119
Число страниц13
ЖурналCollection of Czechoslovak Chemical Communications
Том61
Номер выпуска1
DOI
СостояниеОпубликовано - 1 янв 1996
Опубликовано для внешнего пользованияДа

ASJC Scopus subject areas

  • Chemistry(all)

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