Cyclic Voltametric Studies on the Interaction of Adrenaline With Formic Acid and Acetic Acid

The interaction of adrenaline with formic acid and acetic acid is investigated by cyclic voltametric (CV) approach. With the concentration of formic acid and acetic acid increasing, the electron transfer ability of adrenaline decreases, the peak-to-peak potential separation between anodic and canodic peak potential increases, and the anodic and canodic peak current decrease significantly. The CV curves of 6×10-3 mol/L adrenaline at platinum electrode in a series of KCl-HCl solution with different high concentrations of formic acid (or acetic acid) and different PH values indicate that the effect of hydrogen bond interaction on the adrenaline is much stronger than the effect of PH value on it. The change degree of peak current and peak potential of adrenaline in acetic acid system is more obvious than those in formic acid system.