• Klíčová slova
• pachová stopa, olfaktronika, vyšetřování zločinu, policejní psi,
• MeSH
• čich MeSH
• lidé MeSH
• odoranty * analýza   MeSH
• policie MeSH
• psi MeSH
• soudní lékařství metody   MeSH
• zločinci MeSH
• znalecký posudek MeSH
• zvířata MeSH
• Check Tag
• lidé MeSH
• psi MeSH
• zvířata MeSH

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.

• MeSH
• adsorpce MeSH
• lidé MeSH
• mikroextrakce na pevné fázi metody   MeSH
• pleťový krém chemie   MeSH
• plynová chromatografie s hmotnostně spektrometrickou detekcí přístrojové vybavení   metody   MeSH
• těkavé organické sloučeniny chemie   izolace a purifikace   MeSH
• Check Tag
• lidé MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• hodnotící studie MeSH

High resolution FT rotational spectroscopy of gases in the decimeter spectral region with a heterodyne detection system, that uses the Fabry-Perot resonator and supersonic jet for the maximal sensitivity and resolving power, is introduced as a unique tool for the conformational analysis of complex molecules. The paper describes technical spe¬cifications of the new FTMW spectrometer recently built up at the Institute of Chemical Technology, Prague.