Direct On-Line Coupling of Capillary HPLC with 1H NMR Spectroscopy for the Structural Determination of Retinyl Acetate Dimers:  2D NMR Spectroscopy in the Nanoliter Scale

This paper presents the application of directly coupled capillary high-performance liquid chromatography (capillary HPLC) and proton high-field nuclear magnetic resonance spectroscopy (NMR) for structural elucidation of a so-far unknown kitol isomer. One- and two-dimensional continuous- and stopped-...

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Published in:Analytical chemistry (Washington) 1997-04, Vol.69 (7), p.1421-1425
Main Authors: Schlotterbeck, Götz, Tseng, Li-Hong, Händel, Heidrun, Braumann, Ulrich, Albert, Klaus
Format: Article
Language:English
Subjects:
Analytical chemistry
Chemistry
Chromatographic methods and physical methods associated with chromatography
Exact sciences and technology
Other chromatographic methods
Scientific imaging
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container_title Analytical chemistry (Washington)
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creator Schlotterbeck, Götz
Tseng, Li-Hong
Händel, Heidrun
Braumann, Ulrich
Albert, Klaus
description This paper presents the application of directly coupled capillary high-performance liquid chromatography (capillary HPLC) and proton high-field nuclear magnetic resonance spectroscopy (NMR) for structural elucidation of a so-far unknown kitol isomer. One- and two-dimensional continuous- and stopped-flow NMR spectra were recorded in a 180 μm i.d. capillary, corresponding to a detection volume of only 200 nL. Unequivocal structural assignment on the basis of 1D and 2D stopped-flow capillary HPLC−NMR experiments was performed. The kitol isomer mixture was present in a sample of thermally isomerized retinyl acetate and separated on a capillary column.
doi_str_mv 10.1021/ac960902b
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source American Chemical Society:Jisc Collections:American Chemical Society Read & Publish Agreement 2022-2024 (Reading list)
subjects Analytical chemistry
Chemistry
Chromatographic methods and physical methods associated with chromatography
Exact sciences and technology
Other chromatographic methods
Scientific imaging
title Direct On-Line Coupling of Capillary HPLC with 1H NMR Spectroscopy for the Structural Determination of Retinyl Acetate Dimers:  2D NMR Spectroscopy in the Nanoliter Scale
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