Hematite Nanoparticles-Modified Electrode Based Electrochemical Sensing Platform for Dopamine

Figure 13

(a) Square wave voltammograms recorded for α-Fe₂O₃ nanoparticle-modified electrode during successive addition of 5 μM of DA in 0.1 M PBS (pH = 6.8) at scan rate of 100 mVs⁻¹. (b) The calibration curve obtained upon the 5 μM addition of DA in 0.1 M PBS (pH = 6.8).

(a)

(b)