Figure 7: Effect of increasing concentrations of diamide (13.25-63.2 μmol/L) on the SW voltammogram peak potential current (Ip) of reduced glutathione (120 μmol/L) dissolved in 0.1 mol/L phosphate buffer (pH 7.5). The voltammograms are presented in figure 6. Error bars denote standard deviation from 5 independent experiments.