Analysis of amino acid enantiomers from aged fingerprints
| Autor: | Vonne Vleer, Maarten Weening, Marcel de Puit, Ward van Helmond |
|---|---|
| Přispěvatelé: | Lectoraat Forensisch Onderzoek |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Alanine
chemistry.chemical_classification Chromatography Methionine General Chemical Engineering 010401 analytical chemistry Fingerprint (computing) General Engineering 01 natural sciences 0104 chemical sciences Analytical Chemistry Amino acid 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine chemistry Valine Crime scene 030216 legal & forensic medicine Enantiomer Histidine |
| Zdroj: | ANALYTICAL METHODS, 12(15), 2052-2057. Royal Society of Chemistry Analytical Methods, 12(15) |
| ISSN: | 1759-9660 |
| Popis: | Fingerprints found at a crime scene can be key in criminal investigations. A method to accurately determine the age of the fingerprint, potentially crucial to linking the fingerprint to the crime, is not available at the moment. In this paper, we show that the use of the enantiomeric ratio of d/l-serine in fingerprints could pose as interesting target for age estimation techniques. We developed a UPLC-MS/MS method to determine the enantiomer ratios of histidine, serine, threonine, alanine, proline, methionine and valine from fingerprint residue. We found a significant change only in the relative ratio of d-serine with increasing fingerprint age after analysis of fingerprints up to 6 months old. |
| Databáze: | OpenAIRE |
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