Results 61 to 70 of about 475,171 (162)
NMR reaction monitoring in flow synthesis
Beilstein Journal of Organic Chemistry, 2017 Recent advances in the use of flow chemistry with in-line and on-line analysis by NMR are presented. The use of macro- and microreactors, coupled with standard and custom made NMR probes involving microcoils, incorporated into high resolution and ...
M. Victoria Gomez, Antonio de la Hoz
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MethodsX, 2023 We present a method for analysing the lipophilic fraction extracted from ground coffee beans using 60 MHz proton (1H) NMR spectroscopy. In addition to the triglycerides from coffee oil, spectral features are seen from a range of secondary metabolites ...
Y. Gunning, M. Defernez, E.K. Kemsley
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Mechanistic Diversity in Photoexcited Radical Redox Chemistry: A Critical Evaluation
Angewandte Chemie International Edition, EarlyView.Many high‐profile examples of photoredox catalysis are proposed to proceed via excitation of an open‐shell intermediate form of the catalyst. However, there is much debate over whether such mechanisms are realistic and, if so, exactly how they can occur.
Samuel J. Horsewill +3 more
wiley +1 more source
Applied Sciences, 2020 NMR Relaxation (NMRR) is an extremely useful quantitative technique for material science, particularly for studying polymers and porous materials. NMR Cryoporometry (NMRC) is a powerful technique for the measurement of pore-size distributions and total ...
J. Beau W. Webber
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Simultaneous use of solution, solid-state NMR and X-ray crystallography to study the conformational landscape of the Crh protein during oligomerization and crystallization [PDF]
, 2010 We explore, using the Crh protein dimer as a model, how information from solution NMR, solid-state NMR and X-ray crystallography can be combined using structural bioinformatics methods, in order to get insights into the transition from solution to ...
NMR Spectroscopy +9 more
core
Determination of self-diffusion coefficients in mixtures with benchtop 13C NMR spectroscopy via polarization transfer [PDF]
, 2023 Nuclear magnetic resonance (NMR) is an established method to determine self-diffusion coefficients in liquids with high precision. The development of benchtop NMR spectrometers makes the method accessible to a wider community.
Phuong, Johnnie +4 more
core +1 more source
Robotic arms for hyperpolarization-enhanced NMR
Journal of Magnetic Resonance OpenOptimization of nuclear spin hyperpolarization experiments often require varying one system parameter at a time (or several parameters in a nontrivial manner) as well as multiple repetitions of signal measurements.
Kirill Sheberstov +8 more
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British Journal of Clinical Pharmacology, EarlyView.Aims CYP2C19 is one of the most important pharmacogenes, and its activity is highly variable due to factors such as genetics or drug–drug interactions. Due to the lack of an appropriate endogenous CYP2C19 biomarker, surrogate methods to assess its activity are warranted.
Julian Peter Müller +9 more
wiley +1 more source
pH Determination in Grape Must by Benchtop NMR Spectroscopy
ChemFoodChem, EarlyView.Benchtop NMR spectroscopy enables electrode‐free pH determination in grape must. By modeling tartaric acid's chemical shift variation, pH is derived directly from NMR spectra alongside standard composition parameters. Validated against 100 samples, this integrated approach tracks pH changes during acidification, deacidification, and fermentation ...
Billy Salgado +9 more
wiley +1 more source
MagnetochemistryLow-field benchtop nuclear magnetic resonance (NMR) spectroscopy has emerged as an accessible analytical platform for rapid, routine, and application-oriented analysis. However, its broader analytical adoption remains constrained by intrinsic limitations,
Gayoung Seo, Yeon Ju Shin, Sangdoo Ahn
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