Research Article
Electrochemical Determination of Metronidazole in Tablet Samples Using Carbon Paste Electrode
Figure 6
Square wave voltammograms of CPE (corrected for background) in pH 7.0 BRB solution containing MTZ of various concentrations (a–l: 1, 5, 25, 50, 100, 150, 200, 250, 350, 400, 450, and 500 μM, resp.). Inset: calibration curve of peak current versus concentration of MTZ. Experimental conditions: square wave frequency 30 Hz, square wave amplitude 50 mV, step potential 10 mV, −500 mV, and 25 s.