Differential pulse voltammetric determination of eugenol at a pencil graphite electrode

Differential pulse voltammograms of 10 μM eugenol in BR buffer solution (pH: 2.0) containing 0.1 M KCl at a) PGE and b) GCE (pulse amplitude: 20 mV; pulse time: 30 s; scan rate: 25 mV s− 1).57