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Citation |
Belchior F, Andrews SP. J. Forensic Sci. 2016; 61(6): 1622-1631. |
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Affiliation |
School of Forensic and Applied Sciences, University of Central Lancashire, Preston PR1 2HE, U.K. |
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Copyright |
(Copyright © 2016, American Society for Testing and Materials, Publisher John Wiley and Sons) |
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DOI |
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PMID |
27807849 |
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Abstract |
Nylon bags are used for packaging fire debris in several countries, particularly in Europe. The possibility of cross-contamination during transport from the fire scene to the laboratory, in normal casework conditions in the U.K., was studied for two brands of nylon bags, using simulated heavy-loaded fire debris. Three experiments were carried out with each brand, using as sample a piece of cotton fabric soaked with gasoline. One experiment was carried out using automotive paint thinner (oxygenated solvent). Each sample was sealed in a nylon bag and stored in contact with eight empty bags. The empty bags were analysed at regular intervals for a period of time up to 8 weeks, using SPME and GC/MS. Cross-contamination was found for components of gasoline (toluene and C2 -alkylbenzenes) in the two brands of nylon bags used, after 4 days and 2 weeks. Cross-contamination using automotive topcoat thinner was detected after 2 days. Language: en |