Voltammetric Determination of Ascorbic Acid Content in Cabbage Using Anthraquinone Modified Carbon Paste Electrode

Figure 5

SWVs of AQMCPE in pH 4 PBS containing 2.0 mM AA at different amplitudes (a–i: 10, 15, 20, 25, 30, 35, 40, 45, and 50 mV, respectively). Inset: plot of anodic peak current vs. square wave amplitude.