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(a) Multiple cyclic voltammograms recorded on the GCE in 0.1 M phosphate buffer containing 0.1 M NaNO3 and 0.2 mM Azure A and saturated with chloroform, pH = 7.0; scan rate 100 mV/s. Arrows indicate changes in the peaks from the 1st to 20th cycle, blue line corresponds to bare GCE. (b) Single cycle recorded on the GCE covered with poly(Azure A) transferred in the same buffer with no monomer dye.
