INVESTIGADORES
FELICE Carmelo Jose
congresos y reuniones científicas
Título:
A new method for optimizing polarization point in electrochemical impedance based measurements
Autor/es:
NANNI, PAULA INÉS; ZAMORA, MARTÍN; GOY CARLA BELÉN; MADRID ROSSANA ELENA; FELICE, CARMELO JOSÉ; RUIZ GABRIEL
Lugar:
Montevideo
Reunión:
Congreso; XXII Congreso de Bioingeniería y 11ª Jornada de Ingeniería Clínica; 2020
Institución organizadora:
Universidad de la República
Resumen:
In this work, we show a new procedure to obtain an optimum DC polarization potential that allows to achieve the maximum possible sensitivity for analyte determination, when electrochemical techniques are used. This is valid whether purely DC or AC potentials are used for system polarization. In addition, the optimum potential is lower than the ones generally used by the classical methods, avoiding redox-active interferents and rapid degradation of the working electrode. In our case we obtain a reduction of 40% of the DC applied potential, and ten fold increase in the sensitivity.
