Results 271 to 280 of about 140,285 (306)
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Progress in Hyperpolarized Ultrafast 2D NMR Spectroscopy
ChemPhysChem, 2008AbstractAn important development in the field of NMR spectroscopy has been the advent of hyperpolarization approaches, capable of yielding nuclear spin states whose value exceeds by orders‐of‐magnitude what even the highest‐field spectrometers can afford under Boltzmann equilibrium.
Mor, Mishkovsky, Lucio, Frydman
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Single-scan 2D DOSY NMR spectroscopy
Journal of Magnetic Resonance, 2008Spatial encoding is a particular kind of spin manipulation that enables the acquisition of multidimensional NMR spectra within a single scan. This encoding has been shown to possess a general applicability and to enable the completion of arbitrary nD NMR acquisitions within a single transient.
Yoav, Shrot, Lucio, Frydman
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Structural investigations on betacyanin pigments by LC NMR and 2D NMR spectroscopy
Phytochemistry, 2004Four betacyanin pigments were analysed by LC NMR and subjected to extensive NMR characterisation after isolation. Previously, low pH values were applied for NMR investigations of betalains resulting in rapid degradation of the purified substances thus preventing extensive NMR studies.
Florian C, Stintzing +4 more
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NMR-based fluxomics: Quantitative 2D NMR methods for isotopomers analysis
Phytochemistry, 2007We have investigated the reliability of 2D-COSY and 2D-TOCSY experiments to provide accurate measurements of (13)C-enrichments in complex mixtures of (13)C-labelled metabolites. This was done from both theoretical considerations and experimental investigations.
Massou, Stephane +3 more
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1D and 2D NMR for KRAS:Ligand Binding
Fragment-based screening by ligand-observed 1D NMR and binding interface mapping by protein-observed 2D NMR are popular methods used in drug discovery. These methods allow researchers to detect compound binding over a wide range of affinities and offer a simultaneous assessment of solubility, purity, and chemical formula accuracy of the target ...openaire +2 more sources
Characterization of heroin samples by 1H NMR and 2D DOSY 1H NMR
Forensic Science International, 2014Twenty-four samples of heroin from different illicit drug seizures were analyzed using proton Nuclear Magnetic Resonance ((1)H NMR) and two-dimensional diffusion-ordered spectroscopy (2D DOSY) (1)H NMR. A careful assignment and quantification of (1)H signals enabled a comprehensive characterization of the substances present in the samples investigated:
Stéphane, Balayssac +6 more
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Direct insight into insulin aggregation by 2D NMR complemented by PFGSE NMR
Proteins: Structure, Function, and Bioinformatics, 2008AbstractThe aggregation of Zn(II)‐bound and zinc‐free human insulin was studied in solution using the Hβ∼CH3 crosspeaks of threonine residues in 2D COSY, TOCSY, and NOESY NMR spectra which allow viewing of the oligomers in equilibrium. This is complemented by PFGSE measurements of the translational diffusion coefficient, Di, used for monitoring the ...
Wojciech, Bocian +6 more
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