| Thermal degradation analysis of amino acids in fingerprint residue by pyrolysis GC-MS to develop new latent fingerprint developing reagents. | |
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MedLine Citation:
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PMID: 17316235 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Conventional development of latent fingerprints is compromised when the prints are decomposed by extreme temperatures, such as those encountered when a weapon cartridge is fired, an improvised explosive device is detonated, and/or in arson cases. Understanding how these extreme temperatures alter the chemical and physical properties of latent fingerprint residue could aid in the discovery of a reagent that could effectively develop these decomposed fingerprints. To mimic scenarios where fingerprints may be exposed to high heat conditions, standards of the five most abundant amino acids in fingerprint residue as well as extracted fingerprint residue were pyrolized under controlled conditions. Compounds identified as pyrolytic decomposition products were 3,6-dimethylpiperazine-2,5-dione (from alanine), maleimide, and 2,5-furandione (from aspartic acid). The pyrograms and selected ion traces show these products to hold promise as indicators of decomposed fingerprint residues and, therefore, may serve as good candidate substrates for a developing reagent. |
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Authors:
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Amy Richmond-Aylor; Suzanne Bell; Patrick Callery; Keith Morris |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: Journal of forensic sciences Volume: 52 ISSN: 0022-1198 ISO Abbreviation: J. Forensic Sci. Publication Date: 2007 Mar |
Date Detail:
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Created Date: 2007-02-23 Completed Date: 2007-04-09 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 0375370 Medline TA: J Forensic Sci Country: United States |
Other Details:
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Languages: eng Pagination: 380-2 Citation Subset: IM |
Affiliation:
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C. Eugene Bennett Department of Chemistry, West Virginia University, 217 Clark Hall, Morgantown, WV 26506-6045, USA. amyaylor@gmail.com |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Dermatoglyphics* Gas Chromatography-Mass Spectrometry Hot Temperature* Humans Indicators and Reagents Maleic Anhydrides Maleimides Piperazines |
| Chemical | |
Reg. No./Substance:
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0/3,6-dimethylpiperazine-2,5-dione; 0/Indicators and Reagents; 0/Maleic Anhydrides; 0/Maleimides; 0/Piperazines; 541-59-3/maleimide |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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