Synthesis and Electroanalytical Performance of a Composite Material Based on Poly(3,4-ethylenedioxythiophene) Doped with Lignosulfonate

Figure 7

Differential pulse voltammograms of UA at the concentration increasing from 0 to 1.0 mM (0.2 mM step) in the absence (a) and presence of 1 mM AA (b).

(a)

(b)