Fig. 6From: Electrochemical investigations and theoretical studies of biocompatible niacin-modified carbon paste electrode interface for electrochemical sensing of folic acidA CVs of 30.0 µM FA at NC/CPE in 0.2 M PBS of different pH (5.5 to 8.0) with the scan rate of 0.05Vs−1. B The effect of pH on anodic peak potentialBack to article page