title: Isolation of n-decyl-alpha(1-->6) isomaltoside from a technical APG mixture and its identification by the parallel use of LC-MS and NMR spectroscopy
abstract: The identification of n-decyl alpha(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.
authors.affiliation: Institute of Food Chemistry, Technical University of Berlin, Germany.
authors.initials: P
authors.lastname: Billian
authors.initials: W
authors.lastname: Hock
authors.initials: R
authors.lastname: Doetzer
authors.initials: HJ
authors.lastname: Stan
authors.initials: W
authors.lastname: Dreher