A METHOD AND A SYSTEM BASED ON VOLTAMMETRY FOR CHARACTERIZATION AND DISCRIMINATION OF LIQUIDS

摘要

The present invention provides a systems based on voltammetry for characterization and discrimination of liquid and method thereof comprising an electrochemical cell containing a liquid sample, a sensor probe having plurality of working electrodes, a reference electrode and a counter electrode being connected to a potentiostat, an excitation signal generator unit for generating low potential pulse sequences to be applied on the said working electrodes by means of the said potentiostat, a current acquisition unit for acquiring the current response data being connected to the said potentiostat, a microcontroller unit being arranged to control the said excitation signal generation unit and the said current acquisition unit; wherein a PC being interfaced to the said microcontroller for storing and analyzing the said current response data using multivariate data analysis technique and to output the result from the analysis to characterize and discriminate the liquid sample. The system is free from any kind of electrode switching and method based on the system measuring the combined current response flowing through plurality of the working electrodes to discriminate the liquid samples.