Figure 5: Current–time curves for the glucose oxidase electrode of (a) polyaniline and (b) poly (aniline-co-2-anilinoethanol) at 0.65V. Glucose solution (1) 1 mM, (2) 3 mM, (3) 5 mM, (4) 7 mM, (5) 10 mM, (6) 15 mM, (7) 20 mM, (8) 30 mM,(9) 40 mM in 0.1M acetate buffer, pH 7.