Research Article

Hematite Nanoparticles-Modified Electrode Based Electrochemical Sensing Platform for Dopamine

Figure 10

Cyclic voltammograms recorded for (a) bare GC and (b) α-Fe2O3 nanoparticle-modified electrode with 50 μM of DA in 0.1 M PBS (pH = 6.8) at different scan rates: 5–200 mVs−1. The plots of the peak current versus scan rate1/2 obtained for the (c) bare GC and (d) α-Fe2O3 nanoparticle-modified electrode.
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(a)
396135.fig.0010b
(b)
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(c)
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(d)