Research Article

Ultrasensitive Detection of Ferulic Acid Using Poly(diallyldimethylammonium chloride) Functionalized Graphene-Based Electrochemical Sensor

Figure 3

CVs of GCE (a, b) and PDDA-G/GCE (c, d) in acetate buffer solution (0.1 mol L−1, pH 3.0) with 5.86 × 10−6 M FA (b, d) and without FA (a, c).
424790.fig.003