Voltammetric Determination of Herbicide Biphenox on Mercury-Meniscus-Modified Solid Silver Amalgam Electrode

Autoři

  • D. Cabalková Department of Analytical Chemistry, UNESCO Laboratory of Environmental Electrochemistry, Charles University, Prague,
  • J. Barek Department of Analytical Chemistry, UNESCO Laboratory of Environmental Electrochemistry, Charles University, Prague,
  • J. Fischer Department of Analytical Chemistry, UNESCO Laboratory of Environmental Electrochemistry, Charles University, Prague,
  • T. Navrátil J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Prague
  • K. Pecková Department of Analytical Chemistry, UNESCO Laboratory of Environmental Electrochemistry, Charles University, Prague,
  • B. Yosypchuk J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Prague

Abstrakt

Optimum conditions are described for the determination of micromolar and submicromolar concentrations of herbicide Biphenox by differential pulse voltammetry (DPV) on non-toxic solid silver amalgam electrode modified with mercury meniscus in aqueous methanol¬ic (9:1) Britton-Robinson buffer (pH 7). The limit of quantification is 2.4?10????????????7 mol l????????????1. Cyclic voltammetry with the same working electrode was used to clarify the mechanism of the electrode reaction.

Stahování

Publikováno

15.04.2009

Jak citovat

Cabalková, D., Barek, J., Fischer, J., Navrátil, T., Pecková, K., & Yosypchuk, B. (2009). Voltammetric Determination of Herbicide Biphenox on Mercury-Meniscus-Modified Solid Silver Amalgam Electrode. Chemické Listy, 103(3). Získáno z http://ww.w.chemicke-listy.cz/ojs3/index.php/chemicke-listy/article/view/1564

Číslo

Vol 103 No 3 (2009)

Sekce

Články