observed at a potential of approximately -500 mV (vs. Ag/AgCl) at pH 2.0. There is no peak when a blank B-R solution
was scanned at the same conditions, and peak intensity increases
linearly with increasing concentration of CA, showing that this reduction peak is due to the reduction of CA molecules.
As can be seen in Fig. 3, there are also three anodic peaks at reverse scan.
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