Figure 4

Effect of accumulation time of (A) irreversible reduction and (B) oxidation-reduction on peak current of 250 ng·mL−1 fenitrothion at GCE modified with graphene oxide dispersion.
Effect of accumulation time of (A) irreversible reduction and (B) oxidation-reduction on peak current of 250 ng·mL−1 fenitrothion at GCE modified with graphene oxide dispersion.