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

Abstract

Optimum conditions are described for the determination of micromolar and submicromolar concentrations of herbicide Bifenox by differential pulse voltammetry (DPV) on non-toxic meniscus modified silver solid amalgam electrode (m-AgSAE) in methanol - Briton-Robinson buffer pH 7 (9:1) mixed medium. The limit of quantification was found to be 2.4•10-7 mol.l-1.

Cyclic voltammetry on the same working electrode was used to clarify the mechanism of the electrode reaction.

Keywords

• bifenox
• voltammetry
• solid silver amalgam electrode