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Gasoline analysis by headspace mass spectrometry and near infrared spectroscopy

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URI: http://hdl.handle.net/10498/20336

DOI: 10.1016/j.fuel.2015.03.019

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Author/s
Ferreiro González, MartaAuthority UCA; Álvarez, José A.; Ayuso Vilacides, JesúsAuthority UCA; Palma Lovillo, MiguelAuthority UCA; García Barroso, Carmelo
Date
2015-03
Department
Química Analítica; Química Física
Source
Fuel 153 (2015) 402–407
Abstract
Headspace mass spectrometry and near infrared spectroscopy in combination with chemometric tools, including hierarchical cluster analysis and linear discriminant analysis, have been used for the classification of gasoline according to the research octane number. Volatile components were studied by headspace mass spectrometry whereas the whole gasoline samples were studied by near infrared spectroscopy. Sample pretreatment was not required for either analysis. A set of 60 samples belonging to two different research octane numbers (95# and 98#) was analyzed by both techniques. The best results were obtained on using linear discriminant analysis, which allowed a full discrimination of the gasoline samples using only four m/z ratios (46, 59, 95 and 98) in the case of headspace mass spectrometry and three regions (below 1000 nm, 1400–1500 nm and 1600 nm) in the case of near infrared spectroscopy.
Subjects
gasoline; discrimination; headspace-mass spectometry; research octane number; forensic sciences
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  • Artículos Científicos [4216]
  • Artículos Científicos INBIO [242]
  • Articulos Científicos Quim. Ana. [129]
  • Articulos Científicos Quim. Fis. [74]
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
This work is under a Creative Commons License Attribution-NonCommercial-NoDerivatives 4.0 Internacional

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