A Dopamine Sensor Based on Pre-Concentration by Magnetic Nanoparticles
Figure 2
(a) The cyclic voltammograms of (A) the MCPE and (B) the MCPE/MNP in a solution of 0.1 M NaClO4 containing 0.5 mM [Fe(CN)6]3−/4−, scan rate 100 mV s−1. (b) Linear relationship of and square root of scan rate at the MCPE/MNP. Inset is the cyclic voltammograms of the MCPE/MNP in a solution of 0.1 M containing 0.5 mM [Fe(CN)6]3−/4− with different scan rates ((a)–(j): 50, 100, 150, 200, 250, 300, 350, 400, 450, and 500 mV s−1).
