A study of adulteration in gasoline samples using flame emission spectroscopy and chemometrics tools

JM de Paulo, G Mendes, JEM Barros, PJS Barbeira - Analyst, 2012 - pubs.rsc.org
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 …

Multivariate calibration in Fourier transform infrared spectrometry as a tool to detect adulterations in Brazilian gasoline

LSG Teixeira, FS Oliveira, HC dos Santos… - Fuel, 2008 - Elsevier
In the present work, Fourier transform infrared spectroscopy (FTIR) in association with
multivariate chemometrics classification techniques was employed to identify gasoline …

Determination of gasoline adulteration by principal components analysis-linear discriminant analysis applied to FTIR spectra

RCC Pereira, VL Skrobot, EVR Castro, ICP Fortes… - Energy & …, 2006 - ACS Publications
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 …

Rapid and sensitive method for detecting adulterants in gasoline using ultra-fast gas chromatography and Partial Least Square Discriminant Analysis

MG Nespeca, JFVL Munhoz, DL Flumignan… - Fuel, 2018 - Elsevier
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 …

Differentiation of gasoline samples using flame emission spectroscopy and partial least squares discriminate analysis

JM de Paulo, JEM Barros, PJS Barbeira - Energy & Fuels, 2014 - ACS Publications
In this work, flame emission spectroscopy (FES) was combined with the partial least squares
discriminant analysis (PLS-DA) method aimed at classifying different types of gasoline …

Adulteration detection of Brazilian gasoline samples by statistical analysis

LSM Wiedemann, LA d'Avila, DA Azevedo - Fuel, 2005 - Elsevier
Unfortunately, addition of organic solvents (heavy aliphatic, light aliphatic and aromatic
hydrocarbons) in Brazilian gasoline is very frequent, and this illegal practice does not …

Modeling the characteristics and quantification of adulterants in gasoline using FTIR spectroscopy and chemometric calibrations

J Dadson, S Pandam, N Asiedu - Cogent chemistry, 2018 - Taylor & Francis
The criminal act of fuel (gasoline) adulteration still remains a global worry due to its
environmental, health and economic effect. Current methods for the detection of fuel …

Detecção de adulterações em gasolina e previsão de parâmetros físico-químicos a partir de curvas de destilação associadas a ferramentas quimiométricas

G Mendes - 2012 - repositorio.ufmg.br
Despite the action of ANP (National Agency of Petroleum Natural Gas and Biofuels) in the
process of monitoring and inspection, there are samples of gasoline being sold out of …

Identification of gasoline adulteration using comprehensive two-dimensional gas chromatography combined to multivariate data processing

MP Pedroso, LAF de Godoy, EC Ferreira… - … of Chromatography A, 2008 - Elsevier
A method to detect potential adulteration of commercial gasoline (Type C gasoline, available
in Brazil and containing 25%(v/v) ethanol) is presented here. Comprehensive two …

[PDF][PDF] Using statistical tools to detect gasoline adulteration

PJS Barbeira - Engenharia Térmica, 2002 - core.ac.uk
The Brazilian fuel market has gone through great changes in last years with the end of the
State production and distribution monopoly, which lead to an increased number of fuel …