Voltammetric Determination of 8-Nitroquinoline Using a Silver Solid Electrode and Its Application to Model Samples of Drinking and River Water

Tereza Rumlova, Jiri Barek, Frank Michael Matysik

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This work is focused on the application of a silver solid electrode (AgE) for the development of modern voltammetric methods for the determination of submicromolar concentrations of biologically active compounds present in the environment. 8-Nitroquinoline (8-NQ), a well-known chemical carcinogen, was chosen as a model substance. Differential pulse voltammetry (DPV) was used to study electrochemical behavior of 8-NQ in different aqueous matrices. The following optimal conditions for determination of 8-NQ in the concentration ranges from 2 to 100μmolL-1 were used: Britton-Robinson (BR) buffer of pH3.0, the regeneration potentials cycles (Ein=-1000mV, Efin=-100mV) and constant cleaning potential -2000mV. Practical applicability of AgE for the determination of micromolar concentrations of 8-NQ was verified on model samples of drinking and river water.

Original languageEnglish
Pages (from-to)510-516
Number of pages7
JournalElectroanalysis
Volume27
Issue number2
DOIs
Publication statusPublished - 1 Feb 2015
Externally publishedYes

Keywords

  • 8-Nitroquinoline
  • Differential pulse voltammetry
  • Drinking water
  • River water
  • Silver solid electrode

ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry

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