Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Ulrich Braumann"'
Autor:
John P. M. van Duynhoven, Doris M. Jacobs, Hyung Elfrink, Ulrich Braumann, Tom van der Laan, Aldrik H. Velders, A. C. Dubbelman, Amy C. Harms, Fatemeh Azadi-Chegeni, Thomas Hankemeier
Publikováno v:
Analytica Chimica Acta 1142 (2021)
Analytica Chimica Acta, 1142, 28-37
Analytica Chimica Acta
Analytica Chimica Acta, 1142, 28-37
Analytica Chimica Acta
The unambiguous identification of unknown compounds is of utmost importance in the field of metabolomics. However, current identification workflows often suffer from error-sensitive methodologies, which may lead to incorrect structure annotations of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69d5b829aba356121a108f6f4f83c63a
https://research.wur.nl/en/publications/fractionation-platform-for-target-identification-using-off-line-d
https://research.wur.nl/en/publications/fractionation-platform-for-target-identification-using-off-line-d
Autor:
Gerard M. Murphy, Ana M. Gil, Manfred Spraul, Ulrich Braumann, John C. Lindon, Cristina Legido-Quigley, David A. Parker, Elaine Holmes, Jeremy K. Nicholson, Hector Vilca-Melendez, Nigel Heaton, Iola F. Duarte, Jonathan R. Swann
Publikováno v:
Mol. BioSyst.. 5:180-190
The first application of high field NMR spectroscopy (800 MHz for (1)H observation) to human hepatic bile (as opposed to gall bladder bile) is reported. The bile sample used for detailed investigation was from a donor liver with mild fat infiltration
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99fec7e7efc7402694131ea032354dbc
https://doi.org/10.1039/b814426e
https://doi.org/10.1039/b814426e
NMR spectroscopy has been applied for many years to perform structure elucidation on pure compounds. Therefore, prior to NMR analysis, it was necessary to separate mixtures by means of extraction and preparative chromatography. Such procedures requir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a76f8aa87843c082202eb71ad08f4d66
https://doi.org/10.1039/9781849735186-00071
https://doi.org/10.1039/9781849735186-00071
Autor:
Freddy Van Damme, Harald Pasch, Roman Streck, Tibor Macko, Jeff Mason, Martin Hofmann, Wolf Hiller, Manfred Spraul, Ulrich Braumann, Jürgen Ganz
Publikováno v:
Journal of Magnetic Resonance. 183:290-302
The on-line coupling of gel permeation chromatography (GPC) and 1H NMR operating at temperatures up to 130 degrees C is presented. A NMR flow probe with a cell volume of 120 microL and a stop-flow valve are developed for on-flow and stop-flow NMR mea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::525dc5026821ce34453777f0c1473974
https://doi.org/10.1016/j.jmr.2006.09.004
https://doi.org/10.1016/j.jmr.2006.09.004
Publikováno v:
Analytica Chimica Acta. 488:35-51
This paper describes the first application of NMR spectroscopy and LC-NMR/MS to the direct analysis of the aromatic composition of beer, grape juice and a wine phenolic extract. 1 H NMR spectroscopy provides non-invasive information on the overall ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d465417cdea979a9dfa0927b45479dd
https://doi.org/10.1016/s0003-2670(03)00579-8
https://doi.org/10.1016/s0003-2670(03)00579-8
Publikováno v:
Analytical Chemistry. 69:1421-1425
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.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46aa07205904bd58f98dd3d52b9e48e8
https://doi.org/10.1021/ac960902b
https://doi.org/10.1021/ac960902b
Autor:
Sabine Strohschein, Klaus Albert, Ulrich Braumann, Gerhard Krack, Manfred Spraul, Rainer Ecker, Heidrun Händel
Publikováno v:
Journal of Chromatography A. 761:336-340
Unlike HPLC-NMR coupling, the combination of supercritical fluid chromatography (SFC) with NMR spectroscopy is not yet a routine method, but the feasibility of this coupling technique has already been demonstrated with synthetic mixtures. In this pap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65bfd424d85b61d558cae7d866b26faf
https://doi.org/10.1016/s0021-9673(96)00822-9
https://doi.org/10.1016/s0021-9673(96)00822-9
Autor:
John C. Lindon, Steen Honoré Hansen, Martin Hofmann, Ulrich Braumann, Manfred Spraul, and Jeremy K. Nicholson, Ulla G. Sidelmann
Publikováno v:
Analytical Chemistry. 69:607-612
Tolfenamic acid (N-(2-methyl-3-chlorophenyl)anthranilic acid) is metabolized in vivo to form several oxidized metabolites which are subsequently conjugated with β-d-glucuronic acid. In the present investigation, the metabolism of tolfenamic acid was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d384ee7a84b197328d2e8c922228e4a
https://doi.org/10.1021/ac960582w
https://doi.org/10.1021/ac960582w
Publikováno v:
Journal of Chromatography A. 750:303-309
The direct on-line coupling between capillary high-performance liquid chromatography (capillary HPLC) and proton high-field nuclear magnetic resonance (NMR) spectrometry has been used to derive structural information about constituents of a mixture o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c714a200b8d49a33d60bfd4437fb8ca6
https://doi.org/10.1016/0021-9673(96)00454-2
https://doi.org/10.1016/0021-9673(96)00454-2