Investigation into the Distinction in Identification of Engine Oil and Gasoline Residues at a Fire Scene

DOI

10.2991/978-94-6463-829-5_34How to use a DOI?

Keywords

Fire Scene; Identification; Engine Oil; Gasoline; Fire residues; GC/SCD

Abstract

To investigate the interference of engine oil combustion on the detection of flammable liquid residues in motor vehicle fires, this study analyzes the characteristics of engine oil combustion residues and compares the differences in extraction methods for GC-MS and GC/SCD analysis results between engine oil and gasoline identification. The findings reveal that solvent extraction is more effective for extracting engine oil residues, while solid-phase microextraction is better suited for gasoline residues. Engine oil residues predominantly consist of C15-C25 alkanes, whereas gasoline residues are primarily composed of polycyclic aromatic hydrocarbons. In sulfur compound detection, the characteristics of engine oil residues are less distinct, manifesting as a series of peaks with retention times ranging from 30 to 45 min. Conversely, sulfur compounds in gasoline residues exhibit a more pronounced distribution, predominantly in the form of thiophenic sulfur. These characteristic differences provide valuable technical support for identifying flammable liquid residues in motor vehicle fires and establish corresponding detection methods for engine oil.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Lili Yu
AU  - Shujun Liu
AU  - Qingshan Meng
AU  - Bai Wang
PY  - 2025
DA  - 2025/08/28
TI  - Investigation into the Distinction in Identification of Engine Oil and Gasoline Residues at a Fire Scene
BT  - Proceedings of the 2025 International Conference on Chemical Engineering and Biological Science (CEBS 2025)
PB  - Atlantis Press
SP  - 343
EP  - 352
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-829-5_34
DO  - 10.2991/978-94-6463-829-5_34
ID  - Yu2025
ER  -