Electrochemical Sensor for o-Nitrophenol Based on β-Cyclodextrin Functionalized Graphene Nanosheets
Figure 3
(a) Cyclic voltammograms of 50 μM o-NP in 0.1 M phosphate buffer at the CD-GNs/GCE with different scan rates (50, 70, 100, 150, 200, 250, and 300 mV/s). (b) The peak currents of o-NP versus the square root of scan rate.
