The frequency of occurrence and discriminatory power of compounds found in human scent across a population determined by SPME-GC/MS |
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Authors: | Curran Allison M Ramirez Carlos F Schoon Adee A Furton Kenneth G |
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Affiliation: | Florida International University, International Forensic Research Institute, Department of Chemistry and Biochemistry, University Park, CP 345, Miami, FL 33199, USA. |
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Abstract: | The composition of human scent collected from the hands is of interest to the medical community as a mechanism to diagnose disease and the forensic community as a means to investigate canine scent discriminations. An extensive survey of the volatile organic compounds (VOCs) identified in the headspace of hand odor samples utilizing solid phase micro-extraction gas chromatography/mass spectrometry (SPME-GC/MS) has been conducted to determine the constituents of the human base odor profile. Sixty-three compounds were extracted from the collected odor samples. The composition included acids, alcohols, aldehydes, hydrocarbons, esters, ketones and nitrogen-containing compounds. The majority of the compounds detected (79.4%) were present in less than one third of the individuals sampled. Spearman correlation coefficient comparisons at a match/no-match threshold of 0.9 produced a distinguish ability of 99.67% across the population. |
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