Comparative Analysis of Commercial Automotive Gasolines by Raman spectroscopy Guilherme Venâncio de Oliveira, Augusto Viano José, Edson Fouad Beck Filho, Joubert Vieira Santos, Marcos Carneiro Rodrigues, Mariana Antonio Corrêa, Landulfo Silveira Jr.

Abstract

Raman spectroscopy is an easy-to-operate technique, quick to obtain results and does not require reagents or sample preparation. It can be used to analyze the quality of fuels in a non-destructive way. In this study, the technique was used to compare regular, additive and “premium” commercial gasoline samples through the peaks due to formulation components (naphtha and ethanol). Gasoline samples were acquired at two different gas stations in the city of Santos, SP. The Raman spectra of the samples of regular, additive and “premium” gasoline samples indicated peaks of naphtha and ethanol, confirming that it is possible to use Raman spectroscopy for fuel quality control.