LC-NMR Technique in the Analysis of Phytosterols in Natural Extracts | Zendy

Štěpán Horník | Zendy; Marie Sajfrtová | Zendy; Jindřich Karban | Zendy; Ján Sýkora | Zendy; Anna Březinová | Zendy; Zdeněk Wimmer | Zendy

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LC-NMR Technique in the Analysis of Phytosterols in Natural Extracts

Author(s) -

Štěpán Horník,

Marie Sajfrtová,

Jindřich Karban,

Ján Sýkora,

Anna Březinová,

Zdeněk Wimmer

Publication year - 2013

Publication title -

journal of analytical methods in chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.407

H-Index - 25

eISSN - 2090-8865

pISSN - 2090-8873

DOI - 10.1155/2013/526818

Subject(s) - high performance liquid chromatography , chemistry , chromatography , qualitative analysis , nuclear magnetic resonance spectroscopy , carbon 13 nmr , conjugated system , proton nmr , organic chemistry , polymer , qualitative research , social science , sociology

The ability of LC-NMR to detect simultaneously free and conjugated phytosterols in natural extracts was tested. The advantages and disadvantages of a gradient HPLC-NMR method were compared to the fast composition screening using SEC-NMR method. Fractions of free and conjugated phytosterols were isolated and analyzed by isocratic HPLC-NMR methods. The results of qualitative and quantitative analyses were in a good agreement with the literature data.

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