Differential Electroanalysis of Dopamine in the Presence of a Large Excess of Ascorbic Acid at a Nickel Oxide Nanoparticle-Modified Glassy Carbon Electrode

<div>SWVs obtained from the GC<sub>ox</sub>/nano-NiO<i><sub>x</sub></i> electrode in PBs (pH 6.0) containing different concentrations of AA (1.16, 2.32, 3.48, 4.64, and 5.8 mM) and DA (0.08, 0.17, 0.26, 0.35 and 0.44 mM). Square wave amplitude: 25 mV; frequency: 25 Hz; step potential: 2 mV. The electrode potential was scanned from −0.5 V to 0.5 V. The inset shows the calibration curves for DA and AA.</div>

Journal of Sensors

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Figure 11

Figure 11: Differential Electroanalysis of Dopamine in the Presence of a Large Excess of Ascorbic Acid at a Nickel Oxide Nanoparticle-Modified Glassy Carbon Electrode 

Figure 11 | Differential Electroanalysis of Dopamine in the Presence of a Large Excess of Ascorbic Acid at a Nickel Oxide Nanoparticle-Modified Glassy Carbon Electrode 