Voltammetric Determination of Submicromolar Concentrations of 3-Nitrofluoranthene and Pendimethalin at Silver Solid Amalgam Electrode

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L. Vaňkováa, L. Maixnerováa, K. Čížekb, J. Fischerb, J. Barekb, T. Navrátilc, and B. Yosypchukc

a Masaryk Technical College of Chemistry, Prague, b Department of Analytical Chemistry, UNESCO Laboratory of Environmental Electrochemistry, Charles University, Prague, c J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Prague

 

Optimum conditions are described for the determination of genotoxic 3-nitrofluoranthene (3-NF) and pendimethalin using differential pulse voltammetry (DPV). The limits of quantification (LQ) around 4∙10-7 mol l-1 were found for both the materials. In addition, adsorptive stripping voltammetry was used for determination of 3-NF with LQ around 3∙10-8 mol l-1. The practical applicability of newly developed methods was demonstrated on direct determination of pendimethalin in model samples of drinking water by DPV with LQ around 5∙10-7 mol l-1.
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