Difficulties with the determination of mercury in foodstuffs by stripping voltammetry

V. N. Batalova, E. A. Zakharova, G. B. Slepchenko, M. V. Malygina

Результат исследования: Материалы для журналаСтатья

3 Цитирования (Scopus)

Аннотация

The main problems with the determination of mercury in foodstuffs by stripping voltammetry were analyzed. The conditions for obtaining the analytical signal from mercury(II) at a gold-graphite electrode and for reducing the effect of interfering substances were refined. A simplified procedure for the preparation of foodstuff samples by the chemical (HNO3 + H 2O2) and photochemical oxidation of samples was proposed. The determination conditions were optimized by the fractional factorial design of the experiments. It was shown that a gas-discharge XeBr excilamp can be used as an alternative to a mercury quartz lamp in the sample preparation of foodstuffs. The conditions for reducing the blank experiment and its contribution to the results of determination were considered.

Язык оригиналаАнглийский
Страницы (с... по...)468-473
Количество страниц6
ЖурналJournal of Analytical Chemistry
Том59
Номер выпуска5
DOI
Статус публикацииОпубликовано - мая 2004

    Fingerprint

ASJC Scopus subject areas

  • Analytical Chemistry

Цитировать