Voltammetric determination of 1,2-diaminoanthraquinone using carbon paste electrode

Jiří Zima, Veronika Tinková, Joseph Wang, Jiří Barek

Результат исследований: Материалы для журналаСтатья

Аннотация

Direct current (DC) voltammetry and differential pulse (DP) voltammetry using a carbon paste electrode (CPE) have been used for the determination of trace amounts of ecotoxic 1,2-diaminoanthraquinone (DAAQ). The limit of determination (LD) of DAAQ for DC voltammetry was 2 × 10 -6 mol l-1, and for DP voltammetry 2 × 10 -7 mol l-1 under the optimized conditions in a mixed Britton-Robinson buffer pH 12 and methanol (1:9) medium. Adsorptive accummulation of the analyte on the surface of CPE decreased the limit of determination to 2 × 10-8 mol l-1 for DP voltammetry. Practical applicability of these newly developed methods was verified on model samples of river water.

Язык оригиналаАнглийский
Страницы (с-по)1033-1041
Число страниц9
ЖурналCollection of Czechoslovak Chemical Communications
Том76
Номер выпуска8
DOI
СостояниеОпубликовано - 22 авг 2011
Опубликовано для внешнего пользованияДа

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ASJC Scopus subject areas

  • Chemistry(all)

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