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The petroleum-laced background

Lentini1, Dolan, Cherry

  • 1Fire Laboratory, Applied Technical Services, Inc., Marietta, GA 30066, USA.

Journal of Forensic Sciences
|September 27, 2000
PubMed
Summary
This summary is machine-generated.

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Petroleum-derived volatile compounds are detectable in many common products, even years after manufacture. This study highlights the importance of using comparison samples in forensic analysis.

Area of Science:

  • Analytical Chemistry
  • Forensic Science

Background:

  • Many common consumer and building materials are manufactured using petroleum-derived liquids.
  • These residual compounds can persist in materials over extended periods.

Purpose of the Study:

  • To investigate the presence and persistence of volatile organic compounds (VOCs) in various uncontaminated substrata.
  • To assess the suitability of passive headspace concentration and GC/MS for detecting these VOCs.

Main Methods:

  • Utilized passive headspace concentration (ASTM E-1412) for sample preparation.
  • Employed gas chromatographic/mass spectrometric (GC/MS) analysis (ASTM E-1618) for volatile component identification.
  • Analyzed diverse materials including textiles, paper products, adhesives, and building materials.

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Main Results:

  • Volatile components, often originating from petroleum-based manufacturing liquids, were frequently detected in tested materials.
  • These compounds remained detectable even in products several years old.
  • The study confirmed the efficacy of the chosen analytical methods for VOC detection in various matrices.

Conclusions:

  • The persistent presence of petroleum-derived volatiles in common materials necessitates careful consideration in forensic investigations.
  • The use of appropriate comparison samples is crucial for accurate interpretation of analytical results.
  • Passive headspace concentration coupled with GC/MS is a viable method for detecting residual volatiles in diverse substrata.