[PDF] Top 20 Double cross polarization for the indirect detection of nitrogen-14 nuclei in magic angle spinning NMR spectroscopy
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Double cross polarization for the indirect detection of nitrogen-14 nuclei in magic angle spinning NMR spectroscopy
... 2017) Nitrogen-14 NMR spectra at fast magic-angle spinning rates can be acquired indirectly by means of two-dimensional techniques based on double cross ... Voir le document complet
10
Proton micro-magic-angle-spinning NMR spectroscopy of nanoliter samples
... outlook In this contribution, we presented a microMAS setup for high-resolution 1 H solid-state NMR spectroscopy using fused-silica capillaries as sample containers with about 64–88 nl sample ... Voir le document complet
12
NMR Heteronuclear Correlation between Quadrupolar Nuclei in Solids.
... exist for building up heteronuclear high resolution solid state NMR ...experiments. The first, and commonly used, method is to restore the through space dipolar ...under Magic ... Voir le document complet
4
De novo prediction of cross-effect efficiency for magic angle spinning dynamic nuclear polarization
... nuclear polarization (DNP) attracts large interest because it can provide impressive sensitivity gains to solid-state Nuclear Magnetic Resonance (ssNMR) ...spectroscopy. In DNP, the large ... Voir le document complet
24
59Co second-order quadrupolar effects in the 13C cross-polarization magic angle spinning NMR spectra of the cobaltocenium salts [Co2*Co]+[PF6]- and [Cp*CpCo]+[PF6]-
... C, 14 N (S D 1) spin pair in organic compounds, where the signals of carbon atoms directly bonded to nitrogen atoms are usually split into 1 : 2 (or 2 : 1) ‘doublets’, with each line ... Voir le document complet
7
Ultrafast double-quantum NMR spectroscopy
... suitable for quantitative analyses, again gaining benefit from the absence of diagonal peaks and of the associated “t 1 ...9 In this communication, we introduce an approach ... Voir le document complet
5
Heterostrain rules the flat-bands in magic-angle twisted graphene layers
... , the experimental spacing of van Hove singulari- ties in this regime is increased by electronic correlations and tends to increase with ...presented in Fig. 2b including both heterostrain and ... Voir le document complet
7
1H high resolution magic-angle coil spinning (HR-MACS) μNMR metabolic profiling of whole Saccharomyces cervisiae cells: a demonstrative study
... between the non-stressed and stressed cell ...samples for each group. The dif- ference spectrum, S, consists only of the metabolites which vary under a 60-min osmotic shock; positive ... Voir le document complet
14
Bimodal detection of proteins by $^{129}$Xe NMR and fluorescence spectroscopy
... The interest of magnetic resonance imaging (MRI) for molecular imaging has experienced a renewed enthusiasm 20 years ago with the development of the first activatable contrast ... Voir le document complet
8
Experimental strategies for $in\ vivo$ $^{13}$C NMR spectroscopy
... detected. The typical experimental design instead consists in administering 13 C-labeled substrates (orally or intravenously) and observing the subsequent labeling of metabolic ...“Observing ... Voir le document complet
14
Dark nuclei. I. Cosmology and indirect detection
... Even in this case, dark nucleosynthesis must occur close to the kinematic ...that in determining the cosmological evolution of DM abundances, any near- threshold processes have ... Voir le document complet
20
Dynamic Nuclear Polarization Opens New Perspectives for NMR Spectroscopy in Analytical Chemistry
... conditions, the addition of solvated radicals to the sample yields NMR spectra that may present large solvent signals and that can obscure 1 H or 13 C signals of interest from ... Voir le document complet
25
Ultrafast double-quantum NMR spectroscopy with optimized sensitivity for the analysis of mixtures
... Ultrafast double-quantum NMR spectroscopy with optimized sensitivity for the analysis of mixtures ...2D NMR enables the acquisition of 2D spectra within a ... Voir le document complet
8
Cross sections of nuclei for 1.4 BeV neutrons
... Using a narrow collimated beam the integral angular dis- tribution of diffraction-scattered neutrons from C, Cu, and Pb is measured by varying the detector geometry.. The [r] ... Voir le document complet
125
Potential of NMR spectroscopy in the characterization of nonconventional oils
... by NMR to estimate the concentrations of various chemical functional groups that are potentially useful for synthetic modiications in using bio-oil as a chemical ...on the ... Voir le document complet
9
Kinetics of methane hydrate replacement with carbon dioxide and nitrogen gas mixture using in situ NMR spectroscopy
... above the melting temperature of methane hydrate and below the that of carbon dioxide hydrate, thus these results clearly indicate further experimental results are required to advance ... Voir le document complet
9
Continuously Tunable 250 GHz Gyrotron with a Double Disk Window for DNP-NMR Spectroscopy
... schematic of the mode converter assembly showing the helically cut launcher with an off-axis parabolic mirror and two concave ...shows the double disk window assembly and the ... Voir le document complet
18
Introducing new nuclei in solid state NMR of gas hydrates
... sensitivity of NMR to the local environment and the ability to distinguish between different structural types of hydrates together with its quantitative nature and potential for ... Voir le document complet
11
Detection of induced polarization
... sender, battery operated that enables the user to directly read the integrated decay voltages. The measuring system consists of primarily an amplifier, a diode bridge for [r] ... Voir le document complet
54
Two- and Three-Dimensional Multinuclear Stray-Field Imaging of Rotating Samples with Magic-Angle Spinning (STRAFI-MAS): From Bio to Inorganic Materials
... H NMR frequency in the presence of a magnetic field gradient ...is, in fact, still the fundamental basis for today’s MRI ...along the x, y, and z direction are ... Voir le document complet
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