Figure 2: HPLC-DAD Chromatogram of the standard solution (100 μL Gallic Acid 0.025 mg/mL; 100 μL (+)-Catechin 0.25 mg/mL; 100 μL (-)-Epicatechin 0.25 mg/mL; 100 μL PCB1 0.09 mg/mL; 100 μL PCB2 0.09 mg/mL; 100 μL di (-)-Epicatechina gallato 0.1 mg/mL).