Figure 4.
A) Cyclic voltammograms with the scan rate varied from 150 to 1000 mVs−1 for a 148 uM solution of NOHA. Scan rates of 150, 200, 400, 450, 550, 850, 900, 1000 mVs−1 were tested. B) Relationship between the square root of the scan rate and the peak current. The linear relationship, R2=0.98, indicates that the NOHA oxidation reduction reaction is limited by mass transfer.