Encyclopedia of Lipidomics

0486540 - MBÚ 2018 RIV NL eng M - Část monografie knihy
Řezanka, Tomáš - Pádrová, K. - Sigler, Karel
Derivatization in Gas Chromatography of Lipids.
Encyclopedia of Lipidomics. Dordrecht: Springer, 2016 - (Wenk, M.). ISBN 978-94-007-7864-1
Grant CEP: GA ČR GA14-00227S
Institucionální podpora: RVO:61388971
Klíčová slova: iodine * adduct * diesel
Obor OECD: Microbiology

Derivatization is performed as part of gas chromatographic (GC) analysis of lipids primarily to extend the spectrum of substances that can be determined by this method. Derivatization in general converts less volatile and thermally labile substances into compounds that can be analyzed in the gaseous state. One of the most important methods is protection (derivatization) of polar groups such as –OH, –NH 2, –SH, or –COOH. Due to an elevated temperature in a gas chromatograph, the analysis of compounds having free polar groups either suffers from a poor division (formation of tailing peaks) like, e.g., in the case of free fatty acids, or the analysis completely fails, e.g., in the case of saccharides formed after the hydrolysis of glycopeptides (e.g., digalactosyldiacylglycerols).
Trvalý link: http://hdl.handle.net/11104/0281464