| Title: | Untargeted SPME-GC-MS Characterization of VOCs Released from Spray Paint |
| Author(s): | Tiessen M; Stock NL; Stotesbury T; |
| Address: | "Forensic Science Undergraduate Program, Trent University, 1600 West Bank Drive, Peterborough, ON K9L 0G2, Canada. Water Quality Centre, Trent University, 1600 West Bank Drive, Peterborough, ON K9L 0G2, Canada. Faculty of Science, Forensic Science, Ontario Tech University, 2000 Simcoe Street N, Oshawa, ON L1G 0C5, Canada" |
| ISSN/ISBN: | 1945-239X (Electronic) 0021-9665 (Linking) |
| Abstract: | "Paints are a common form of physical evidence encountered at crime scenes. This research presents an optimized method for the untargeted analysis of volatile organic compounds (VOCs) in spray paint using solid-phase microextraction-gas chromatography-mass spectrometry (SPME-GC-MS). The presence and persistence of VOCs were monitored in 30 minute intervals, over a 4 hour period, in a triplicate time study. As predicted, spray paint solvents are lost to the environment readily, whereas few VOCs remained present in the headspace in low concentrations beyond 4 hours. The VOCs that were observed to have the highest persistence in the headspace were aromatic compounds and those with longer hydrocarbon chains. We present this study in a forensic science context and suggest that the interpretation of the results may be useful for forensic applications in establishing a time since deposition of a spray-painted surface" |
| Notes: | "PubMed-not-MEDLINETiessen, Mitchell Stock, Naomi L Stotesbury, Theresa eng 2020/11/05 J Chromatogr Sci. 2021 Jan 14; 59(2):103-111. doi: 10.1093/chromsci/bmaa082" |
