J 2022

Aplikace transesterifikační derivatizační reakce pro GC-MS analýzy

BŘEZINA, Adam, Adéla DOŘMANOVÁ, Petr KUKUČKA, Přemysl LUBAL, Marta FARKOVÁ et. al.

Basic information

Original name

Aplikace transesterifikační derivatizační reakce pro GC-MS analýzy

Authors

Edition

Czech Chemical Society Symposium Series, Brno, Mendelova univerzita v Brně, Brno, Česká republika, 2022, 2336-7202

Other information

Language

Czech

Type of outcome

Článek v odborném periodiku

Field of Study

10406 Analytical chemistry

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Organization unit

Faculty of Science

DOI

Keywords (in Czech)

derivatizace, GC-MS, lipidy, oleje, transesterifikace
Změněno: 21/3/2023 11:25, Mgr. Marie Šípková, DiS.

Abstract

V originále

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 MU
Name: Vývoj metod a instrumentace pro analýzu biologicky významných látek 2022
Investor: Masaryk University