923208.fig.007
Figure 7: Cyclic voltammograms for LbL films from (PANI-AP/GC)6 film in the absence and presence of 0.01 mmol L−1 DA containing ascorbic acid at a concentration of (1) 0.01 mmol L−1 (2) 0.02 mmol L−1 and (3) 0.03 mmol L−1 in 0.1 mol L−1 HCl solution, at 50 mV s−1.