Evaluation of fatty acids in groomed fingerprint by gas chromatographic analysis using various extraction solvents and treatment methods

Extremely small amounts of fatty acids detected in latent fingerprints are important for studying fingerprint visualization and age determination through changes in composition over time. However, methods for efficiently extracting or recovering fatty acids from fingerprints have not been extensivel...

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Bibliographic Details
Published in:Journal of analytical science and technology 2019-08, Vol.10 (1), p.1-13, Article 29
Main Authors: Kim, Youngmin, Choi, Won-sil, Choi, Eun Ji, Jeon, Byoungjun, Kim, Jungah, Park, Gee Ho, Huang, Yan, Wufuer, Maierdanjiang, Jin, Xian, Kim, Mi Ok, Xu, Lianji, Piao, Ying Lan, Park, Jae Hee, Kim, Won-Kon, Choi, Tae Hyun
Format: Article
Language:English
Subjects:
Age determination
Analytical Chemistry
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Chronology
Composition
Extraction solvent
Fatty acid composition
Fatty acids
Fingerprints
Flame ionization
Gas chromatography
Gas chromatography flame ionization detector
Ionization
Latent fingerprint
Methylation
Monitoring/Environmental Analysis
Research Article
Solvents
Statistical analysis
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Summary:Extremely small amounts of fatty acids detected in latent fingerprints are important for studying fingerprint visualization and age determination through changes in composition over time. However, methods for efficiently extracting or recovering fatty acids from fingerprints have not been extensively studied. If accurate and stable quantitative estimations are established, age estimates will be possible through a better understanding of the fatty acid composition. The extraction solvent and treatment method are essential factors for achieving a reliable analysis of fatty acids. There have been few previous studies that efficiently compared fatty acids. In this study, fatty acids from sebaceous fingerprint residues were quantified with various extraction solvents and treatment methods and were evaluated with gas chromatography flame ionization detection (GC-FID). All data were analyzed using a statistical method.
ISSN:2093-3371
2093-3134
2093-3371
DOI:10.1186/s40543-019-0188-y