Voltammetric determination of 2-amino-6-nitrobenzothiazole and 5-nitrobenzimidazole using a silver solid amalgam electrode modified by a microcrystalline natural graphite–polystyrene composite film

Voltammetric behavior of two genotoxic nitro compounds (2-amino-6-nitrobenzothiazole, ANBT, and 5-nitrobenzimidazole, 5-NBIA) has been investigated using direct current voltammetry (DCV) and differential pulse voltammetry (DPV) at a polished silver solid amalgam electrode modified by microcrystalline natural graphite–polystyrene composite transducer (shortly denoted as carbon film electrode – CFE). The optimum conditions have been found for their determination in the Britton–Robinson buffer solutions. The practical applicability of the newly developed methods was verified on model samples of drinking and river waters.