Results 11 to 20 of about 509,407 (311)

1H-NMR, 1H-NMR T2-edited, and 2D-NMR in bipolar disorder metabolic profiling [PDF]

International Journal of Bipolar Disorders, 2017
Background The objective of this study was to identify molecular alterations in the human blood serum related to bipolar disorder, using nuclear magnetic resonance (NMR) spectroscopy and chemometrics.
Sumit Sethi, Mariana Pedrini, Lucas B. Rizzo, Maiara Zeni-Graiff, Caroline Dal Mas, Ana Cláudia Cassinelli, Mariane N. Noto, Elson Asevedo, Quirino Cordeiro, João G. M. Pontes, Antonio J. M. Brasil, Acioly Lacerda, Mirian A. F. Hayashi, Ronei Poppi, Ljubica Tasic, Elisa Brietzke   +15 more
doaj   +4 more sources

Spectral Analysis and Structural Elucidation of Luliconazole

Chinese 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, GAO Hong-mei, LI Feng, CHEN Xiang-feng   +3 more
doaj   +1 more source

Isolation of new racemic sugar (D/L galacturonic acid) from leaves of Paederia foetida Linn. [PDF]

, 2011
New racemic sugars (D/L galacturonic acid) were isolate from the leaves of Paederia foetida Linn by the column chromatography.
Hans Raj Bhatt, Kamaruz Zaman, Md. Ali, Udaya Pratap Singh, Vikas Kumar, Yadav Pankajkumar S   +5 more
core   +2 more sources

Spectroscopic Studies of Delafloxacin Meglumine

Chinese 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, Dong HAN, Hong-jun LUO, Wen-bin SHEN, Gong-jun YANG   +4 more
doaj   +1 more source

A Novel Triterpene Saponin from Gypsophila capillaris [PDF]

, 1995
A novel C-28 tetraglycoside of quillaic acid (1) has been isolated from Gypsophila capillaris. The structure was elucidated by 1 D NMR (NOE difference, DEPT, selective13C{1H} INEPT), 2D NMR (1H,1H and1H,13C COSY,1H,1H,1H RELAY, ROESY and TOCSY) and other
Duddeck, Helmut, Elgamal, M.Hani A., Gartmann, Martin, Mikhova, Bozhana, Soliman, Hesham S.M.   +4 more
core   +2 more sources

Analyzing Pentaerythritol Stearate Homologs with NMR Spectroscopy

Chinese 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, LIU Guang, WANG Qin, LIU Zheng   +3 more
doaj   +1 more source

Spectral Analyses and Structural Elucidation of Cyflumetofen

Chinese 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, CHEN Zhi-xue, YANG Xiao-yun   +2 more
doaj   +1 more source

A multinuclear solid state NMR, density functional theory and X-Ray diffraction study of hydrogen bonding in Group I hydrogen dibenzoates [PDF]

, 2013
An NMR crystallographic approach incorporating multinuclear solid state NMR (SSNMR), X-ray structure determinations and density functional theory (DFT) are used to characterise the H bonding arrangements in benzoic acid (BZA) and the corresponding Group ...
Alberth Lari, Andrew P. Howes, Anupold, Arunan, Asakawa, Ashbrook, Barbour, Bastow, Bastow, Cannon, Cheetham, Clark, Cole, Coles, David Quigley, Dinu Iuga, Etter, Farrugia, Fillaux, Fletcher, Gemmecker, Gilli, Glowacki, Gobetto, Gorman, Gowda, Gregory J. Rees, Griffin, Gu, Gu, Gu, Haeberlen, Hagaman, Harris, Harris, Hirsch, Howes, Hung, John D. Wallis, John V. Hanna, Kim, Kuroki, Lee, Macrae, Mark E. Light, Mark E. Smith, Massiot, Mateusz B. Pitak, Milford, Moudrakovski, Oldfield, Panchmatia, Perdew, Perdew, Pickard, Profeta, Samoson, Samoson, Sheldrick, Shimoda, Simon J. Coles, Skinner, Slootmaekers, Sponer, Stephen P. Day, Terry L. Threlfall, Traer, Waugh, Wei, Wilson, Witkowski, Wong, Wong, Wong, Wu, Wu, Wu, Yates   +77 more
core   +2 more sources

1H NMR relaxation in urea

Journal 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, Bacher, Alfred D, Dybowski, C.   +2 more
openaire   +3 more sources

MetaboMiner – semi-automated identification of metabolites from 2D NMR spectra of complex biofluids [PDF]

, 2008
Background One-dimensional (1D) 1H nuclear magnetic resonance (NMR) spectroscopy is widely used in metabolomic studies involving biofluids and tissue extracts.
Jianguo Xia, Trent C Bjorndahl, Peter Tang, David S Wishart   +3 more
core   +1 more source