Voltammetric determination of insecticide thiamethoxam on silver solid amalgam electrode

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

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

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).

Original languageEnglish
Pages (from-to)5-10
Number of pages6
JournalElectrochimica Acta
Volume140
DOIs
Publication statusPublished - 10 Sep 2014
Externally publishedYes

Fingerprint

Mercury amalgams
Insecticides
Mercury
Silver
Rivers
Electrodes
Mercury (metal)
Mechanical stability
Voltammetry
Potable water
Drinking Water
Electrolytes
Buffers
Water
thiamethoxam

Keywords

  • Differential pulse voltammetry (DPV)
  • Drinking water
  • River water
  • Silver solid amalgam electrode
  • Solid phase extraction
  • Thiamethoxam

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

Cite this

Voltammetric determination of insecticide thiamethoxam on silver solid amalgam electrode. / Chorti, Parthena; Fischer, Jan; Vyskocil, Vlastimil; Economou, Anastasios; Barek, Jiri.

In: Electrochimica Acta, Vol. 140, 10.09.2014, p. 5-10.

Research output: Contribution to journalArticle

Chorti, Parthena ; Fischer, Jan ; Vyskocil, Vlastimil ; Economou, Anastasios ; Barek, Jiri. / Voltammetric determination of insecticide thiamethoxam on silver solid amalgam electrode. In: Electrochimica Acta. 2014 ; Vol. 140. pp. 5-10.
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