Antioxidant Capacity Determination in Plants and Plant-Derived Products: A Review

Figure 3

Differential pulse voltammograms at a Pt working electrode for different ascorbic acid concentrations (mM): 20 (1), 15 (2), 10 (3), 5 (4), 2.5 (5), 1.25 (6), 0.625 (7), and 0.31 (8); pulse amplitude, 75 mV, pulse period, 125 ms, and potential scan rate, 50 mV/s [89].