The source identification and classification study of soot after combustion
Article first published online: 27 MAR 2012
Copyright © 2012 John Wiley & Sons, Ltd.
Fire and Materials
Volume 37, Issue 3, pages 246–256, April 2013
How to Cite
Zhi, Y., Zong, R., Guangxuan, L., Liu, H. and Jialei, T. (2013), The source identification and classification study of soot after combustion. Fire Mater., 37: 246–256. doi: 10.1002/fam.2132
- Issue published online: 20 MAR 2013
- Article first published online: 27 MAR 2012
- Manuscript Revised: 2 MAR 2012
- Manuscript Accepted: 2 MAR 2012
- Manuscript Received: 6 APR 2011
- gasoline soot;
- diesel soot;
Solid phase microextraction-gas chromatography-mass spectroscopy technology was used to extract and analyze three kinds of accelerant soot including diesel soot, gasoline soot, and diesel–gasoline mixture soot. A total of 60 spectrograms have been obtained, analyzed, and compared. It was found that these kinds of soot were quite different with each other in the difference of major target compounds and retention time span, and could be visually identified by the profile of the corresponding spectrogram. A data matrix of 60 * 41 was reached by the characteristic substances corresponding with the retention time in all these 60 spectrograms. With principal component analysis method, two major component variables were obtained to classify the attribution of soot, with perfect classification efficiency of 100%. Hierarchical cluster analysis was further applied for the dendrogram analysis. In spite of the absence of the training set, the classification of 100% accuracy of these kinds of soot could be achieved. Copyright © 2012 John Wiley & Sons, Ltd.