BŘEZINA, Adam, Adéla DOŘMANOVÁ, Petr KUKUČKA, Přemysl LUBAL and Marta FARKOVÁ. Aplikace transesterifikační derivatizační reakce pro GC-MS analýzy. Czech Chemical Society Symposium Series. Brno: Mendelova univerzita v Brně, Brno, Česká republika, 2022, vol. 20, No 5, p. 319-322. ISSN 2336-7202. Available from: https://dx.doi.org/10.54779/ccsss20220319.
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Basic information
Original name Aplikace transesterifikační derivatizační reakce pro GC-MS analýzy
Authors BŘEZINA, Adam, Adéla DOŘMANOVÁ, Petr KUKUČKA, Přemysl LUBAL and Marta FARKOVÁ.
Edition Czech Chemical Society Symposium Series, Brno, Mendelova univerzita v Brně, Brno, Česká republika, 2022, 2336-7202.
Other information
Original language Czech
Type of outcome Article in a journal
Field of Study 10406 Analytical chemistry
Country of publisher Czech Republic
Confidentiality degree is not subject to a state or trade secret
WWW URL
Organization unit Faculty of Science
Doi http://dx.doi.org/10.54779/ccsss20220319
Keywords (in Czech) derivatizace, GC-MS, lipidy, oleje, transesterifikace
Changed by Changed by: Mgr. Marie Šípková, DiS., učo 437722. Changed: 21/3/2023 11:25.
Abstract
This paper is focused on study of the concentration of the basic catalyst in methanol on the yield of the derivatization transesterification reaction of triacyglycerols. Potassium hydroxide and sodium hydroxide solutions were used as basic catalysts. Triacylglycerols were transesterified, rapeseed oil was used as a sample. Triacylglycerols were converted to methyl esters of fatty acids, which were subsequently determined by GC-MS where the peak areas were monitored, because they represent the yield of the formed fatty acid methyl esters, namely palmitic, oleic, linoleic and stearic acids. The highest yield of transesterification of the oil to methylesters of fatty acids was found for a concentration of 3.0 mol dm–3 for KOH and 2.0 mol dm–3 for NaOH. At higher catalyst concentrations, a predominant side-reaction, saponification, was observed, which decreased the overall yield of fatty acid methyl esters.
Links
MUNI/A/1539/2021, interní kód MUName: Vývoj metod a instrumentace pro analýzu biologicky významných látek 2022
Investor: Masaryk University
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