Research Article

A Voltammetric Sensor Based on NiO Nanoparticle-Modified Carbon-Paste Electrode for Determination of Cysteamine in the Presence of High Concentration of Tryptophan

Figure 3

Plot of versus for the oxidation of cysteamine at FCAD/NiO/NPs/CPE. Inset: (A) cyclic voltammograms of 0.5 mM cysteamine at various scan rates: (a) 4; (b) 6; (c) 8; (d) 10; (e) 15; (f) 20; (g) 25, and (h) 35 mV s−1 in 0.1 mol L−1 PBS (pH 7.0).
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