RT journal article
T1 Gasoline analysis by headspace mass spectrometry and near infrared spectroscopy
A1 Ferreiro González, Marta
A1 Álvarez, José A.
A1 Ayuso Vilacides, Jesús
A1 Palma Lovillo, Miguel
A1 García Barroso, Carmelo
A2 Química Analítica
A2 Química Física
K1 gasoline
K1 discrimination
K1 headspace-mass spectometry
K1 research octane number
K1 forensic sciences
AB 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 infraredspectroscopy.
PB Elsevier
YR 2015
FD 2015-03
LK http://hdl.handle.net/10498/20336
UL http://hdl.handle.net/10498/20336
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 12-nov-2026