Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/58631
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, NGS
Ribeiro, FAD
Lopez, MM
Hantao, LW
Poppi, RJ
Augusto, F
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 x 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. (C) 2013 Elsevier B.V. All rights reserved.
Subject: Biodiesel
Blends of biodiesel and conventional diesel
Comprehensive two-dimensional gas chromatography
Multivariate curve resolution
Multiway principal component analysis
Country: Holanda
Editor: Elsevier Science Bv
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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