Abstract
A voltammetric “electronic tongue” is proposed to identify motor oils. For this, carbon-paste electrodes (CPE) are developed that contain motor oil paste. It is shown by the method of projections to latent structures (PLS) that there are functional correlations between nitro compound marker reducing currents at the proposed CPE and physicochemical properties of motor oils. The possibility of voltammetric identification of motor oils is shown using chemometric methods of principal components analysis (PCA) and soft independent modeling of class analogy (SIMKA) with respect to square wave voltammograms of organic marker compounds (o- and p-isomers of aromatic nitro compounds) at carbon-paste electrodes containing the oils to be identified as the binder.
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