Results 21 to 30 of about 494,170 (294)
MetaboMiner – semi-automated identification of metabolites from 2D NMR spectra of complex biofluids
BMC Bioinformatics, 2008 Background One-dimensional (1D) 1H nuclear magnetic resonance (NMR) spectroscopy is widely used in metabolomic studies involving biofluids and tissue extracts.
Tang Peter +3 more
doaj +1 more source
Iterative Deconvolution of Quadrupole Split NMR Spectra [PDF]
, 2013 We propose a simple method to deconvolute NMR spectra of quadrupolar nuclei in order to separate the distribution of local magnetic hyperfine field from the quadrupole splitting. It is based on an iterative procedure which allows to express the intensity
Frederic, Mila, Masashi, Takigawa
core +2 more sources
High-resolution solid-state NMR study of isotactic polypropylenes
eXPRESS Polymer Letters, 2012 The high-resolution solid-state 13C NMR spectra were recorded for metallocene (m) and Ziegler-Natta (ZN) isotactic polypropylenes (iPP) in pelletized form using cross polarization (CP) and magic angle spinning (MAS) techniques within the temperature ...
O. Fricova +6 more
doaj +1 more source
Application of Computational Chemical Shift Prediction Techniques to the Cereoanhydride Structure Problem-Carboxylate Complications. [PDF]
, 2017 Despite the vast array of techniques available to modern-day chemists, structural misassignments still occur. These misassignments are often only realized upon attempted synthesis, when the spectra of synthesized products do not match previously reported
Saunders, Carla M, Tantillo, Dean J
core +2 more sources
Duplicate detection of 2D-NMR Spectra
Journal of Integrative Bioinformatics, 2007 2D-Nuclear magnetic resonance (NMR) spectra are used in the (structural) analysis of small molecules. In contrast to 1D-NMR spectra, 2D-NMR spectra correlate the chemical shifts of 1H and 13C at the same time.
Hinneburg Alexander +2 more
doaj +1 more source
Polymer Testing, 2022 Co-oligomers of carbon dioxide and propylene oxide with high carbonate content and terminated by hydroxyl groups are practically important polyols to synthesize block copolymers.
Kirill Alferov +5 more
doaj +1 more source
Interplay between Co-3d and Ce-4f magnetism in CeCoAsO [PDF]
, 2010 We have investigated the ground state properties of polycrystalline CeCoAsO by means of magnetization, specific heat and solid state NMR. Susceptibility and specific-heat measurements suggest a ferromagnetic order at about, $T_\mathrm{C}$=75 K.
Baenitz, Michael +6 more
core +2 more sources
Nanogram-scale preparation and NMR analysis for mass-limited small volatile compounds. [PDF]
PLoS ONE, 2011 Semiochemicals are often produced in infinitesimally small quantities, so their isolation requires large amounts of starting material, not only requiring significant effort in sample preparation, but also resulting in a complex mixture of compounds from ...
Satoshi Nojima +4 more
doaj +1 more source
Presence of 3d Quadrupole Moment in LaTiO3 Studied by 47,49Ti NMR
, 2003 Ti NMR spectra of LaTiO3 are reexamined and the orbital state of this compound is discussed. The NMR spectra of LaTiO3 taken at 1.5 K under zero external field indicate a large nuclear quadrupole splitting.
A. Abragam +6 more
core +1 more source
Complex Mixture Analysis of Organic Compounds in Yogurt by NMR Spectroscopy
Metabolites, 2016 NMR measurements do not require separation and chemical modification of samples and therefore rapidly and directly provide non-targeted information on chemical components in complex mixtures.
Yi Lu +3 more
doaj +1 more source