This study has shown that the use of distillation curves combined with PCA (Principal
Component Analysis) and PLS-DA (Partial Least Squares Discriminant Analysis) provides a …

Detection of adulteration in the petroleum fuels (gasoline and diesel) is challenging because
the adulterants usually include those compounds which are already present in these fuels …

In this paper, an attempt has been made to develop a feasible procedure for the prediction of
quality parameters of motor gasoline and to discriminate between the different adulterated …

In the last years, the Brazilian Fuel Quality Monitoring Program drastically reduced the
number of analyzed fuel samples as consequence of the current economic crisis in the …

This work presents a low cost system based on Flame Emission Spectroscopy (FES) that
enables the prediction of fuel adulteration. The spectral data acquired using FES were …

Data on evaporated fraction temperatures obtained from the distillation curves of Brazilian
gasolines were employed to identify adulterated samples by applying the Soft Independent …

To detect adulteration in gasoline, an automatic distillation apparatus was set up to measure
the recovered volume and temperature simultaneously. The level metering was performed …

Brazilian automotive gasoline has been the target of constant adulterations in an attempt to
raise profit margins as a result of the market flexibility and the ensuing increased …

Chemometric data analysis tools were applied to chromatographic data to identify the
presence of solvents in gasoline samples from gas stations in Minas Gerais state, Brazil. A …

In this study, it was found that limiting the number of explanatory distillation curves input
variables in a multivariate regression method to the most significant ones (10%, 50%, 90 …