Voltammetry measurements, room-temperature ionic liquids

Oliveri et al. (2009) presented the development of an artificial tongue based on cyclic voltammetry at Pt microdisk electrodes for the classification of olive oils according to their geographical origin the measurements are made directly in the oil samples, previously mixed with a proper quantity of a RTIL (room temperature ionic liquid). The pattern recognition techniques applied were PCA for data exploration and fc-NN for classification, validating the results by means of a cross-validation procedure with five cancellation groups. 

Since the electron donating feature of an oxygen atom in a methoxyethyl group weakens the cation s positive charge, the electrostatic binding between the ammonium cation and anion weakens, and an ionic liquid forms. The limiting reduction and oxidation potentials (Ered and Eoxd) on platinum of the ionic liquids were measured by cyclic voltammetry at room temperature as shown in Fig. 3. 

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