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. 2017 Apr 5;7:45924. doi: 10.1038/srep45924

Figure 2.

Figure 2

CV responses of bare GCE, GO/GCE and NDC/GCE in 0.1 M KCl containing 5 mM [Fe(CN)6]3−/4− (a) and the different scan rate from 20–200 mV/s (b), inset shows the corresponding plot of square root of scan rate vs peak current. The CVs of bare GCE, GO/GCE and NDC/GCE in 0.05 M PB solution, in the absence (c) and presence of 200 μM CA (d).