期刊
SENSORS
卷 17, 期 11, 页码 -出版社
MDPI
DOI: 10.3390/s17112544
关键词
petroleum-derived products; characterization; fingerprints; E-Nose; gasoline; diesel
资金
- University of Cadiz under the program PU-FPI
- Erasmus Mundus Master in Quality in Analytical Laboratories at the University of Cadiz
- project PR from University of Cadiz
Characterization of petroleum-derived products is an area of continuing importance in environmental science, mainly related to fuel spills. In this study, a non-separative analytical method based on E-Nose (Electronic Nose) is presented as a rapid alternative for the characterization of several different petroleum-derived products including gasoline, diesel, aromatic solvents, and ethanol samples, which were poured onto different surfaces (wood, cork, and cotton). The working conditions about the headspace generation were 145 degrees C and 10 min. Mass spectroscopic data (45-200 m/z) combined with chemometric tools such as hierarchical cluster analysis (HCA), later principal component analysis (PCA), and finally linear discriminant analysis (LDA) allowed for a full discrimination of the samples. A characteristic fingerprint for each product can be used for discrimination or identification. The E-Nose can be considered as a green technique, and it is rapid and easy to use in routine analysis, thus providing a good alternative to currently used methods.
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