A quantitative description of the voltammetric time series of unclosed electric circuits for detection of differences between different potentiostats/galvanostats

Abstract

In this paper, ideal boundary conditions have been created for recording instrument noises and their fluctuations at the level of pico-currents to describe quantitatively the voltammetric behavior of trace components of an electrochemical system and identify the best “ideal” device using voltammetric time series. The proposed mathematical model for the quantitative description of hidden patterns is formed by the data array itself, which includes hundreds of voltammograms (thousands of current values), and no single signals, as is conventionally accepted in the classical approaches of electroanalytical chemistry. This approach can be extended for correcting any other device and correlating its signals to the “ideal” level. The proposed methodology enables the selection of the best device among the supposed devices which opens new possibilities in the detection of the most sensitive instrument (all of them initially have passed through the calibration procedure!) for the “fine” detection of the trace signals.