Research Article

Hematite Nanoparticles-Modified Electrode Based Electrochemical Sensing Platform for Dopamine

Figure 8

Electrochemical impedance spectra (EIS) obtained for (a) bare GC and (b) α-Fe2O3 nanoparticle-modified electrode in 1 × 10−3 M K3[Fe(CN)6] in 0.1 M KCl. (Inset) Expanded view of EIS of α-Fe2O3 nanoparticle-modified electrode.
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