Počet záznamů: 1
Qualitative analyses of less-volatile organic molecules from female skin scents by comprehensive two dimensional gas chromatography-time of flight mass spectrometry
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SYSNO ASEP 0477082 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Qualitative analyses of less-volatile organic molecules from female skin scents by comprehensive two dimensional gas chromatography-time of flight mass spectrometry Tvůrce(i) Doležal, P. (CZ)
Kyjaková, Pavlína (UOCHB-X) RID
Valterová, Irena (UOCHB-X) RID, ORCID
Urban, Š. (CZ)Zdroj.dok. Journal of Chromatography A. - : Elsevier - ISSN 0021-9673
Roč. 1505, Jul 7 (2017), s. 77-86Poč.str. 10 s. Akce International Symposium on Capillary Chromatography /40./ and GCxGC Symposium /13./ Datum konání 29.05.2016 - 03.06.2016 Místo konání Riva del Garda Země IT - Itálie Typ akce WRD Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova human scent analysis ; molecular composition of human scent ; forensic chemistry ; human scent signature ; GCxGC-TOFMS Vědní obor RIV CB - Analytická chemie, separace Obor OECD Analytical chemistry Institucionální podpora UOCHB-X - RVO:61388963 UT WOS 000403529700009 EID SCOPUS 85019884682 DOI 10.1016/j.chroma.2017.04.062 Anotace Instrumental human scent analysis is undoubtedly desirable for many forensic as well medical applications. Most of the previous human scent studies were focused on volatile organic compounds (VOCs) which were analysed by head space solid phase micro-extraction gas chromatography/mass spectrometry (HS-SPME-GC/MS). This method is, however, significantly less sensitive to ”heavier” less volatile compounds emitted from the human skin. These less volatile organic scent molecules probably create the basis of the individual human scent signature, and therefore, our attention is focused mainly on these ”heavier” compounds. The human scent was adsorbed onto purified glass beads and samples were prepared as hexane solutions obtained by extraction from the sampled glass beads. To resolve a lot of very similar molecules, the comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometer (GCxGC-TOFMS) was used to analyse the hexane scent solutions. Using this technique, more than 137 less volatile molecules including organic fatty acids, ketones, aldehydes, simple esters, alcohols, and especially various fatty acid esters with different carbon chains were identified. A considerable number of these molecules were identified in the scent samples for the first time. Pracoviště Ústav organické chemie a biochemie Kontakt asep@uochb.cas.cz ; Kateřina Šperková, Tel.: 232 002 584 ; Jana Procházková, Tel.: 220 183 418 Rok sběru 2018
Počet záznamů: 1