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 …
in Brazil and containing 25%(v/v) ethanol) is presented here. Comprehensive two …
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 …
multivariate chemometrics classification techniques was employed to identify gasoline …
[HTML][HTML] Fast batch injection analysis system for on-site determination of ethanol in gasohol and fuel ethanol
A simple, accurate and fast (180injectionsh− 1) batch injection analysis (BIA) system with
multiple-pulse amperometric detection has been developed for selective determination of …
multiple-pulse amperometric detection has been developed for selective determination of …
[HTML][HTML] Quality control of gasoline by 1H NMR: aromatics, olefinics, paraffinics, and oxygenated and benzene contents
CR Kaiser, JL Borges, AR dos Santos, DA Azevedo… - Fuel, 2010 - Elsevier
A simple and fast 1H NMR method, without any pretreatment, was developed for quality
control of gasoline. It is based on the average group molecular weight approach and relative …
control of gasoline. It is based on the average group molecular weight approach and relative …
Determination of residual oil in diesel oil by spectrofluorimetric and chemometric analysis
CNC Corgozinho, VMD Pasa, PJS Barbeira - Talanta, 2008 - Elsevier
Multivariate calibration (PLS), principal components analysis (PCA) and linear discriminant
analysis (LDA), associated to synchronous spectrofluorimetry, were used to identify and …
analysis (LDA), associated to synchronous spectrofluorimetry, were used to identify and …
Characterization of gasoline by Raman spectroscopy with chemometric analysis
JA Ardila, FLF Soares, MA dos Santos Farias… - Analytical …, 2017 - Taylor & Francis
ABSTRACT A rapid Raman spectroscopy protocol is reported to classify gasoline according
to its distributor and to identify and quantify common adulterants. Gasoline from three …
to its distributor and to identify and quantify common adulterants. Gasoline from three …
[PDF][PDF] Classification of edible oils and uncovering adulteration of virgin olive oil using FTIR with the aid of chemometrics
olive oil adulteration adulteration with less expensive edible oils is a major issue for the olive
oil industry. In this study we have used fourier transform infrared (FTIR) spectroscopy to …
oil industry. In this study we have used fourier transform infrared (FTIR) spectroscopy to …
Screening Brazilian commercial gasoline quality by hydrogen nuclear magnetic resonance spectroscopic fingerprintings and pattern-recognition multivariate …
DL Flumignan, N Boralle, JE De Oliveira - Talanta, 2010 - Elsevier
The identification of gasoline adulteration by organic solvents is not an easy task, because
compounds that constitute the solvents are already in gasoline composition. In this work, the …
compounds that constitute the solvents are already in gasoline composition. In this work, the …
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 …
number of analyzed fuel samples as consequence of the current economic crisis in the …
Study of Brazilian Gasoline Quality Using Hydrogen Nuclear Magnetic Resonance (1H NMR) Spectroscopy and Chemometrics
The identification of gasoline adulteration by organic solvents is not an easy task, because
compounds that constitute the solvents are already in gasoline composition. In this work, the …
compounds that constitute the solvents are already in gasoline composition. In this work, the …