Voltammetric Determination of Genotoxic Dinitronaphthalenes with Meniscus-Modified Silver Solid Amalgam Electrode

Abstract

Optimum conditions are described for the determination of genotoxic 1,3-, 1,5- and 1,8-dinitronaphthalenes (DNN) by differential pulse voltammetry (DPV) on the silver solid amalgam electrode modified with a meniscus. The limits of quantification were found to be 2?10⁻⁶ mol l⁻¹ for 1,3-DNN, 1?10⁻⁶ mol l⁻¹ for 1,5-DNN and 5?10⁻⁷ mol l⁻¹ for 1,8-DNN. The DNNs in submicromolar concentrations cannot be determined by adsorptive stripping voltammetry on the above electrode.