Determination of trace amounts of carcinogenic substances: Adsorptive stripping voltammetry of 1-[4′ -(phenylazo)phenyl]-3,3-dimethyltriazene at a hanging mercury drop electrode

Jiří Barek, Arnold G. Fogg

Результат исследований: Материалы для журналаСтатьярецензирование

15 Цитирования (Scopus)

Аннотация

1-[4′-(Phenylazo)phenyl]-3,3-dimethyltriazene can be determined in the range from 1 × 10-5 to 2 × 10-7 mol dm 3 by direct current or differential-pulse voltammetry at a hanging mercury drop electrode. Direct current adsorptive stripping voltammetry can be used in the range from 2 × 10-8 to 10 × 10-8 mol dm -3 and differential-pulse adsorptive stripping voltammetry in the range from 1 × 10-8 to 2 × 10-11 mol dm -3. The extremely high sensitivity in the latter instance was achieved by using 200-fold diluted Britton-Robinson buffer as a base electrolyte together with a long accumulation time (up to 30 min at 1 × 10 -11 mol dm 3). The relative standard deviation (seven determinations at 2 × 10-11 mol dm-3) was 8.6%.

Язык оригиналаАнглийский
Страницы (с-по)751-755
Число страниц5
ЖурналThe Analyst
Том117
Номер выпуска4
DOI
СостояниеОпубликовано - 1 янв 1992
Опубликовано для внешнего пользованияДа

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Environmental Chemistry
  • Spectroscopy
  • Electrochemistry

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