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In solid-state NMR spectroscopy, magic-angle spinning (MAS) is a technique routinely used to produce better resolution NMR spectra. MAS NMR consists in spinning the sample (usually at a frequency of 1 to 130 kHz ) at the magic angle θ m (ca. 54.74°, where cos 2 θ m =1/3) with respect to the direction of the magnetic field .
International Journal of High Throughput Screening † International Journal of Interferon, Cytokine and Mediator Research † International Journal of Nanomedicine; International Journal of Nephrology and Renovascular Disease; International Journal of Wine Research; International Journal of Women's Health; International Medical Case Reports ...
Full-text aggregator of open access journals and papers (>17,000 journals) from all academic disciplines. Free No [9] Paperity Sp. z o.o. Semantic Scholar: Multidisciplinary: 8,100,000 [10] (200,000,000 metadata [11]) Mostly computer science and biomedical publications. Powered by semantic analysis. Free Semi-free [10] Allen Institute for ...
Solid-state 900 MHz (21.1 T [1]) NMR spectrometer at the Canadian National Ultrahigh-field NMR Facility for Solids. Solid-state nuclear magnetic resonance (ssNMR) is a spectroscopy technique used to characterize atomic-level structure and dynamics in solid materials. ssNMR spectra are broader due to nuclear spin interactions which can be categorized as dipolar coupling, chemical shielding ...
NMR in Biomedicine is a monthly peer-reviewed medical journal published since 1988 by John Wiley & Sons. It publishes original full-length papers, rapid communications, and review articles in which magnetic resonance spectroscopy or imaging methods are used to investigate physiological, biochemical, biophysical, or medical problems.
The 1 H NMR spectra were recorded at a resonance frequency of 400 MHz with a resolution of 0.0625 Hz or at 90 MHz with a resolution of 0.125 Hz. The spectral acquisition was carried out using a flip angle of 22.5 – 30.0 degrees and a pulse repetition time of 30 seconds. [ 4 ]
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A better alternative to the use of potentially hazardous oxidizers is an NMR tube cleaner (right). It is an apparatus which uses a vacuum to flush solvent and/or a detergent solution through the entire length of the NMR tube. In this apparatus, the NMR tube 1 (with the cap 3 fixed to the base of the NMR tube), is placed upside down on the ...