Electrochemical Evaluation of trans-Resveratrol Levels in Red Wine Based on the Interaction between Resveratrol and Graphene

Figure 5

DPV curves at the ERGO/GC electrode for an increasing concentration of trans-resveratrol in the 0.04 M BR buffer solution (pH 2.0): (1) 0, (2) 0.8, (3) 2, (4) 4, (5) 6, (6) 10, (7) 12, (8) 20, (9) 26, and (10) 32 μM. Inset shows the calibration curve of oxidation peak current versus concentration.