Polyurethane Application to Transform Screen-Printed Electrode for Rapid Identification of Histamine Isolated from Fish

Figure 5

The DPV voltammograms of histamine in fish mackerel using PBS (100 mmol·L⁻¹) at pH 7 on (a) MIP/SPE/PU/LiClO₄ and (b) NIP/SPE/PU/LiClO₄. (c) The DPV voltammograms of biogenic amines using PBS (100 mmol·L⁻¹) at pH 7 on MIP/SPE/PU/LiClO₄. (d) The selectivity plot of biogenic amines against potential applied (V).

(a)

(b)

(c)

(d)