Figure 5.
(a) Representative amperometric responses of the PoxBNP/PB/SPCE with successive addition of Py to 50 mM PBS (pH 7.0) at an applied potential of −0.1 V. (b) Calibration plot obtained from (a).
(a) Representative amperometric responses of the PoxBNP/PB/SPCE with successive addition of Py to 50 mM PBS (pH 7.0) at an applied potential of −0.1 V. (b) Calibration plot obtained from (a).