(a)

(b)

Figure 5: Dopamine detection test: (a) cyclic voltammograms for DA detection at concentrations ranging from 0 to 1.96 × 10−5 mol L−1, in H2SO4 0.05 mol L−1 at 25 mVs−1, for ITO/(DS 01/NiTsPc)3 film. (b) Calibration curve ( versus ) for DA detection.