Voltammetric determination of insecticide thiamethoxam on silver solid amalgam electrode

Parthena Chorti, Jan Fischer, Vlastimil Vyskocil, Anastasios Economou, Jiri Barek

Результат исследований: Материалы для журналаСтатья

20 Цитирования (Scopus)

Аннотация

This work demonstrates the applicability of differential pulse voltammetry (DPV) for the determination of the insecticide thiamethoxam at a non-toxic mercury meniscus modified silver solid amalgam electrode (m-AgSAE). The optimum supporting electrolyte was found to be Britton-Robinson (BR) buffer, pH 10. The target compound was quantified directly in spiked drinking and river water samples in the range from 100 μmol L-1 to limits of determination (LOQs) 0.36 and 0.46 μmol L-1, respectively. After preliminary separation and preconcentration by solid phase extraction (SPE) using Lichrolut EN cartridges, quantification in spiked river and drinking water samples was possible in the range from 100 nmol L-1 to LOQs 1.3 and 1.1 nmol L-1, respectively. m-AgSAE is practically non-toxic, possesses good mechanical stability and is easy to handle and activate and thus represents a suitable alternative to the hanging mercury drop electrode (HMDE).

Язык оригиналаАнглийский
Страницы (с-по)5-10
Число страниц6
ЖурналElectrochimica Acta
Том140
DOI
СостояниеОпубликовано - 10 сен 2014
Опубликовано для внешнего пользованияДа

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

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