Analysis of chain saw lubricating oils commonly used in Thailand's southern border provinces for forensic science purpose

Aree Choodum (Lead / Corresponding author), Kijja Tripuwanard, Niamh Nic Daeid

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In recent years, Thailand's southern border provinces (Malay-Muslim-majority border provinces) have become the scene of violence and insurgency. One of the attack patterns is the blocking of roads with perennial plants followed by planned attacks using improvised explosive devices (IEDs) or weapons on first responders. Containers of viscous dark lubricating oil and traces of lubricants on the felled trees were usually found at the scene. These were suspected to be chain oil lubricant from the chainsaws used to cut down the trees used for the roadblock. This work aimed to differentiate the chromatographic patterns of used lubricating oils available in automobile repair shops from various locations across Thailand's southern border provinces. Lubricating oils were analyzed using gas chromatography/flame ionization detector (GC/FID) every two weeks to study their variation in chemical compositions over time. The results obtained from GC/FID were normalized for differentiation. This included four two-stroke, six four-stroke, and three recycled oils. Two lubricating oils found at an incident scene were also analyzed and the results compared with the chain oil from five seized chainsaws.

Original languageEnglish
Pages (from-to)60-68
Number of pages9
JournalForensic Science International
Volume241
Early online date4 May 2014
DOIs
Publication statusPublished - Aug 2014

Keywords

  • Chain saw oil
  • GC-FID
  • Thailand's southern border provinces
  • Used lubricating oil

Fingerprint Dive into the research topics of 'Analysis of chain saw lubricating oils commonly used in Thailand's southern border provinces for forensic science purpose'. Together they form a unique fingerprint.

  • Cite this