High-performance liquid chromatography with nuclear magnetic resonance detection--A method for quantification of alpha- and gamma-linolenic acids in their mixtures with free fatty acids
Jazyk angličtina Země Nizozemsko Médium print-electronic
Typ dokumentu časopisecké články, práce podpořená grantem
PubMed
17157864
DOI
10.1016/j.chroma.2006.11.041
PII: S0021-9673(06)02171-6
Knihovny.cz E-zdroje
- MeSH
- kyselina alfa-linolenová analýza MeSH
- kyselina gama-linolenová analýza MeSH
- kyseliny mastné neesterifikované analýza MeSH
- magnetická rezonanční spektroskopie metody MeSH
- oleje rostlin chemie MeSH
- Ribes chemie MeSH
- semena rostlinná chemie MeSH
- vysokoúčinná kapalinová chromatografie metody MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Názvy látek
- kyselina alfa-linolenová MeSH
- kyselina gama-linolenová MeSH
- kyseliny mastné neesterifikované MeSH
- oleje rostlin MeSH
While many naturally occurring mixtures of free fatty acids are conveniently analyzed by hyphenated technique of LC-NMR, a complete separation of alpha- and gamma-linolenic acids for their quantitative determination appears impossible at least by the methods of reversed phase HPLC. However, they can be differentiated and quantified from 1H NMR spectra measured in the course of isocratic acetonitrile-chloroform (90:10, with C8 and C18 columns in series) LC-NMR analysis without the need for any derivatization.
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