Synthesis and Characterization of Ferrocene Derivatives and Preliminarily Electrocatalytic Oxidation of L-Cysteine at Nafion-Ferrocene Derivatives Modified Glassy Carbon Electrode

Figure 4

Cyclic voltammograms of (a) nafion modified GCE in 0.1 mol L⁻¹ NaNO₃; (b) nafion modified GCE in solution of 0.1 mol L⁻¹ NaNO₃ and 6.0 × 10⁻³mol L⁻¹ L-Cys; (c) 2e-nafion modified GCE in 0.1 mol L⁻¹ NaNO₃ solution; (d) 2e-nafion modified GCE in solution of 0.1 mol L⁻¹ NaNO₃ and 6.0 × 10⁻³mol L⁻¹ L-Cys.