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Type: Artigo de periódico
Title: Quantitative Analysis Of Biodiesel In Blends Of Biodiesel And Conventional Diesel By Comprehensive Two-dimensional Gas Chromatography And Multivariate Curve Resolution.
Author: Mogollon, Noroska Gabriela Salazar
Ribeiro, Fabiana Alves de Lima
Lopez, Monica Mamian
Hantao, Leandro Wang
Poppi, Ronei Jesus
Augusto, Fabio
Abstract: In this paper, a method to determine the composition of blends of biodiesel with mineral diesel (BXX) by multivariate curve resolution with Alternating Least Squares (MRC-ALS) combined to comprehensive two-dimensional gas chromatography with Flame Ionization Detection (GC×GC-FID) is presented. Chromatographic profiles of BXX blends produced with biodiesels from different sources were used as input data. An initial evaluation carried out after multiway principal component analysis (MPCA) was used to reveal regions of the chromatograms were the signal was likely to be dependent on the concentration of biodiesel, regardless its vegetable source. After this preliminary step MCR-ALS modeling was carried out only using relevant parts of the chromatograms. The resulting procedure was able to predict accurately the concentration of biodiesel in the BXX samples regardless of its origin.
Subject: Biofuels
Chromatography, Gas
Flame Ionization
Multivariate Analysis
Principal Component Analysis
Blends Of Biodiesel And Conventional Diesel
Comprehensive Two-dimensional Gas Chromatography
Multivariate Curve Resolution
Multiway Principal Component Analysis
Citation: Analytica Chimica Acta. v. 796, p. 130-6, 2013-Sep.
Rights: fechado
Identifier DOI: 10.1016/j.aca.2013.07.071
Date Issue: 2013
Appears in Collections:Unicamp - Artigos e Outros Documentos

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