Isolation of n-Decyl-α(1→6) Isomaltoside from a Technical APG Mixture and Its Identification by the Parallel Use of LC−MS and NMR Spectroscopy

The identification of n-decyl α(1→6)isomaltoside as a main component of technical alkyl polyglucoside (APG) mixtures by the parallel use of liquid chromatography−mass spectrometry (LC−MS) and nuclear magnetic resonance (NMR) spectroscopy is described. Following enrichment on a styrene−divinylbenzene...

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Bibliographic Details
Published in:Analytical chemistry (Washington) 2000-10, Vol.72 (20), p.4973-4978
Main Authors: Billian, Patrick, Hock, Walter, Doetzer, Reinhard, Stan, Hans-Jürgen, Dreher, Wolfgang
Format: Article
Language:English
Subjects:
Analytical chemistry
Carbohydrates with 4, 5, 6, ... C atoms, dissacharides and oligosaccharides
Carbohydrates. Nucleosides and nucleotides
Chemical reactions
Chemistry
Exact sciences and technology
Miscellaneous
NMR
Nuclear magnetic resonance
Organic chemistry
Preparations and properties
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Summary:The identification of n-decyl α(1→6)isomaltoside as a main component of technical alkyl polyglucoside (APG) mixtures by the parallel use of liquid chromatography−mass spectrometry (LC−MS) and nuclear magnetic resonance (NMR) spectroscopy is described. Following enrichment on a styrene−divinylbenzene-based solid-phase extraction material, unknown components were separated by reversed-phase liquid chromatography (LC). Chemical characterization was achieved by both mass spectrometry and NMR spectroscopy. It is demonstrated that the combination of LC−MS with various NMR techniques is very suitable for stereochemical assignment of unknown components in technical APG mixtures.
ISSN:0003-2700
1520-6882
DOI:10.1021/ac0004005