Results 1 to 10 of about 387,037 (310)

Analysis and classification of 1H-NMR spectra by multifractal analysis

open access: yesPLoS ONE, 2023
The objective of this research focuses on the development of a statistical methodology able to answer the question of whether variation in the intake of sulfur amino acids (SAA) affects the metabolic process.
Jongphil Kim   +3 more
doaj   +4 more sources

Chiral Phosphoric Acid Promoted Chiral 1H NMR Analysis of Atropisomeric Quinolines. [PDF]

open access: yesFront Chem, 2021
An efficient enantioselective NMR analysis of atropisomeric quinolines in the promotion of chiral phosphoric acid is described, in which a variety of racemic 4-aryl quinolines were well-recognized with up to 0.17 ppm ΔΔδ value. Additionally, the optical purities of different nonracemic substrates could be evaluated fast via NMR analysis with high ...
Wan J, Jiang J, Li J.
europepmc   +5 more sources

Structural Elucidation and Quantitative Analysis of Hydrogenation Products of Anthracene by NMR Spectroscopy

open access: yesChinese Journal of Magnetic Resonance, 2021
Three product mixtures of anthracene catalytic hydrogenation under different catalytic conditions were analyzed by nuclear magnetic resonance (NMR) spectroscopy.
Meng-yu DOU   +5 more
doaj   +1 more source

Spectroscopic Studies of Delafloxacin Meglumine

open access: yesChinese Journal of Magnetic Resonance, 2021
The structure of delafloxacin meglumine was analyzed by infrared absorption (IR), ultraviolet absorption (UV), nuclear magnetic resonance (1H NMR, 13C NMR, DEPT, 1H-1H COSY, 1H-13C HSQC and 1H-13C HMBC) spectroscopy, mass spectrometry and elemental ...
Xin-yi ZHAO   +4 more
doaj   +1 more source

Research Progress of 1H NMR-based Metabonomics for Food Adulteration and Traceability Analysis

open access: yesShipin gongye ke-ji, 2022
Due to various influences in the process of origin, processing, storage and transportation, food products are complex and changeable. Therefore, it is challenging to analyze and determine the adulteration and traceability of food.
Zhanming LI   +6 more
doaj   +1 more source

1H Nuclear Magnetic Resonance: A Future Approach to the Metabolic Profiling of Psychedelics in Human Biofluids?

open access: yesFrontiers in Psychiatry, 2021
While psychedelics may have therapeutic potential for treating mental health disorders such as depression, further research is needed to better understand their biological effects and mechanisms of action when considering the development of future novel ...
Sylvana Vilca-Melendez   +3 more
doaj   +1 more source

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   +1 more source

Spectral Analysis and Structural Elucidation of Luliconazole

open access: yesChinese Journal of Magnetic Resonance, 2018
Infrared spectra, ultraviolet spectra, nuclear magnetic resonance (NMR) spectra (i.e., 1H NMR, 13C NMR, DEPT135, 1H-1H COSY, 1H-13C HMQC and 1H-13C HMBC) and mass spectra of luliconazole were collected and used to characterize the compound.
LIN Yun-liang   +3 more
doaj   +1 more source

Intra- and inter-metabolite correlation spectroscopy of tomato metabolomics data obtained by liquid chromatography-mass spectrometry and nuclear magnetic resonance [PDF]

open access: yes, 2008
Nuclear magnetic resonance (NMR) and liquid chromatography-mass spectrometry (LCMS) are frequently used as technological platforms for metabolomics applications.
Bino, R.J.   +4 more
core   +2 more sources

Synthesis, Crystal Structure, and Solid-State NMR Investigations of Heteronuclear Zn/Co Coordination Networks - A Comparative Study [PDF]

open access: yes, 2013
Synthesis and solid-state NMR characterization of two isomorphous series of zinc and cobalt coordination networks with 1,2,4-triazolyl benzoate ligands are reported. Both series consist of 3D diamondoid networks with four-fold interpenetration.
Baias, M   +10 more
core   +1 more source

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