Results 11 to 20 of about 1,079,697 (312)

1H-NMR metabolomics for wine screening and analysis

open access: yesOENO One, 2023
The number of metabolomic studies has grown steadily over the last twenty years. Among the fields of application, food sciences are broadly represented.
Inès Le Mao   +2 more
doaj   +2 more sources

1H-NMR-Spektroskopie

open access: yes, 2016
Eine Einfuhrung zum Thema 1H-NMR-Spektroskopie, inklusive Gerateaufbau, Messprinzip und Interpretationsgrundlagen sind Inhalt dieses Kapitels.
aprentas
openaire   +2 more sources

Saponification Value of Fats and Oils as Determined from 1H-NMR Data: The Case of Dairy Fats

open access: yesFoods, 2022
The saponification value of fats and oils is one of the most common quality indices, reflecting the mean molecular weight of the constituting triacylglycerols.
M. Ivanova   +10 more
semanticscholar   +1 more source

Human Serum/Plasma Glycoprotein Analysis by 1H-NMR, an Emerging Method of Inflammatory Assessment

open access: yesJournal of Clinical Medicine, 2020
Several studies suggest that variations in the concentration of plasma glycoproteins can influence cellular changes in a large number of diseases. In recent years, proton nuclear magnetic resonance (1H-NMR) has played a major role as an analytical tool ...
Rocío Fuertes-Martín   +3 more
semanticscholar   +1 more source

Recommended strategies for spectral processing and post-processing of 1D 1H-NMR data of biofluids with a particular focus on urine

open access: yesMetabolomics, 2018
1H NMR spectra from urine can yield information-rich data sets that offer important insights into many biological and biochemical phenomena. However, the quality and utility of these insights can be profoundly affected by how the NMR spectra are ...
Abdul-Hamid M. Emwas   +6 more
semanticscholar   +1 more source

Analyzing Pentaerythritol Stearate Homologs with NMR Spectroscopy

open access: yesChinese Journal of Magnetic Resonance, 2018
A pentaerythritol stearate sample with unknown composition was analyzed by nuclear magnetic resonance (NMR) spectroscopy (i.e., 1H NMR, quantitative 13C NMR, DEPT135, 1H-1H COSY, 1H-1H NOESY, 1H-13C HSQC and 1H-13C HMBC).
LI Chun-fa   +3 more
doaj   +1 more source

Spectral Analyses and Structural Elucidation of Cyflumetofen

open access: yesChinese Journal of Magnetic Resonance, 2020
Cyflumetofen is a new type of acaricide with high efficiency and low residue. In this work, the compound was characterized by infrared absorption (IR), ultraviolet absorption (UV) and mass spectrometry, as well as nuclear magnetic resonance spectroscopy (
ZHANG Yi-ming   +2 more
doaj   +1 more source

1H NMR relaxation in urea

open access: yesJournal of Molecular Structure, 2007
Abstract Proton NMR spin–lattice relaxation times T1 were measured for urea as a function of temperature. An activation energy of 46.3 ± 4.7 kJ/mol was extracted and compared with the range of 38–65 kJ/mol previously reported in the literature as measured by different magnetic resonance techniques.
Taylor, Robert E   +2 more
openaire   +3 more sources

900MHz 1H-/13C-NMR analysis of 2-hydroxyglutarate and other brain metabolites in human brain tumor tissue extracts. [PDF]

open access: yesPLoS ONE, 2018
PURPOSE:To perform in vitro high-resolution 900 MHz magnetic resonance spectroscopy (NMR) analysis of human brain tumor tissue extracts and analyze for the oncometabolite 2-hydroxyglutarate (2HG) and other brain metabolites, not only for 1H but also for ...
Gregory Hyung Jin Park   +2 more
doaj   +1 more source

Octanol–Water Partition Coefficient Measurement by a Simple 1H NMR Method

open access: yesACS Omega, 2017
We describe a simple miniature shake-flask method to measure the octanol–water partition coefficient of an organic compound. Partition between water and octanol is performed in an NMR tube; the aqueous phase is analyzed by 1H NMR spectroscopy using a ...
Hemi Cumming, C. Rücker
semanticscholar   +1 more source

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