DETERMINATION OF THE OCTANE NUMBER OF AUTOMOTIVE GASOLINES BY FTIR SPECTROMETRY WITH CHEMOMETRICS

The quality of motor fuels is more and strictly controlled in connection with many factors - users are particularly interested the anti-knock resistance automotive gasolines, quantitatively expressed by value research octane number (RON). paper presents FTIR spectrometry conjunction chemometry as an alternative method to standardized determination gasoline a according ?SN EN ISO 5164. An FTIR-PLS regression model working spectra range 650–4000 cm-1 was proposed for ON prediction. With this model, very strong dependence (R=0.996) achieved between predicted values determined method; calibration error 0.414.