Figure 3. (A) Differential pulse voltammetry of 100 μM acetaminophen on an unmodified electrode (---) and on electrode modified with a dispersion of graphene doped with nitrogen (-). (B) Comparative characteristics of the maximum current amplitude of differential pulse voltammetry of 50 μM acetaminophen for an unmodified graphite electrode and an electrode modified with a dispersion of graphene doped with nitrogen (Shumyantseva V.V. et al., manuscript in preparation).