Figure 1.

The effect of superoxide‐anion scavenging determined by UV/Vis spectrophotometer in the presence of DMY. Note: (a) control group: autoxidation of pyrogallol in air‐saturated alkaline solution. (b) autoxidation of pyrogallol+Vc (0.20 mg mL⁻¹). (c) autoxidation of pyrogallol+DMY (0.01 mg mL⁻¹). (d) autoxidation of pyrogallol+DMY (0.05 mg mL⁻¹), (e) autoxidation of pyrogallol+DMY (0.10 mg mL⁻¹), (f) autoxidation of pyrogallol+DMY (0.15 mg mL⁻¹), and (g) autoxidation of pyrogallol+DMY (0.20 mg mL⁻¹)