INVESTIGADORES
MADRID Rossana Elena
artículos
Título:
A new method for optimising polarization point in electrochemical impedance based measurements
Autor/es:
RUIZ, GABRIEL; FELICE, C.J.; NANNI, PAULA I.; GOY, CARLA B.; MADRID, R.E.
Revista:
JOURNAL OF APPLIED ELECTROCHEMISTRY
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2023
ISSN:
0021-891X
Resumen:
In this work, we show a new procedure to obtain an optimum DC polarisation potential that allows achieving 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 polarisation. 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 a increase among 3 and 5 times in the sensitivity.
