Voltammetric Determination of Epinephrine in Pharmaceutical Sample with a Tyrosinase Nanobiosensor

Figure 6

Interference effect on the CP/MWCNT/Tyr/Nafion biosensor response. Differential pulse voltammograms were recorded at (a) presence of  M EP; (b)  M EP and equal concentration of AA; and (c)  M EP and equal concentration of UA (Tyr: 313.087 U/mL; PBS pH: 7.0, 50 mM; scan rate: 50 mV/s; and Nafion: 5 µL).