Results 21 to 30 of about 488,672 (293)

H NMR Studies of Eukaryotic Cytochrome c [PDF]

, 1982
H NMR resonance assignments in the spectra of horse, tuna, Neurmpora crassa and Candida krusei cyto-chromes c are described. Assignments have been made using NMR double-resonance techniques in conjunction with electron-exchange experiments, spectral ...
Boswell, Campbell, Carrington, Dickerson, Eley, Eley, Ernst, Hoffman, Keller, Keller, Korb, McDonald, Moore, Moore, Moore, Redfield, Stellwagen, Swanson   +17 more
core   +1 more source

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, Bjorndahl Trent C, Xia Jianguo, Wishart David S   +3 more
doaj   +1 more source

Spectroscopic Study of $^{75}$As and $^{139}$La NMR on Layered Structure Ferromagnet LaCoAsO [PDF]

, 2010
$^{75}$As and $^{139}$La field-swept NMR spectra were obtained for the novel weakly itinerant ferromagnet LaCoAsO with 2D layered structure above the Curie temperature of 55 K.
Grafe H.-J., Hegger H., Hsu F. C., Ishikado M., Kamihara Y., Kitagawa K., Kitagawa K., Maeno Y., Mendelsohn L. B., Moriya T., Nientiedt A. T., Ogino H., Ohta H., Ohta H., Rotter M., Sefat A. S., Seitchik J. A., Sugawara H., Takada K., Takahashi Y., Wang X. C., Watanabe T., Yanagi H., Yoshimura K., Zimmer B. I.   +24 more
core   +1 more source

Antisymmetric two-dimensional NMR spectra

Chemical Physics Letters, 1987
Abstract While the majority of two-dimensional (2D) NMR experiments correlating single-quantum coherences produce spectra symmetric with respect to reflection about the main diagonal, we propose a new general strategy for design of 2D experiments leading to antisymmetric 2D spectra.
Sørensen, O. W., Griesinger, Christian, ERNST, R. R.   +2 more
openaire   +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, M. Uhrinova, V. Hronsky, M. Kovalakova, D. Olcak, I. Chodak, J. Spevacek   +6 more
doaj   +1 more source

Solid-state NMR characterisation of the thermal transformation of a Hungarian white illite [PDF]

, 2005
1H, 27Al, 29Si and 39K solid-state NMR are reported from a Hungarian illite 2:1 clay for samples heated up 1600 °C. This single-phase sample has a small amount of aluminium substitution in the silica layer and very low iron-content (0.4 wt%).
Ban, Bastow, Brindley, Brindley, Brown, Brown, D.L. Carroll, Deer, Drachman, Drits, Earnest, Engelhardt, Fitzgerald, Fitzgerald, Freude, Grim, Grim, Hayashi, He, Herrero, Jaymes, Jaymes, Kunath-Fandrei, Kunath-Fandrei, Kunwar, Lambert, Lambert, Lausen, M.E. Smith, MacKenzie, Mackenzie, Mackenzie, Massiot, Massiot, McConville, Merwin, Michael, Murad, Rehak, Roch, Rocha, Rocha, Sanchez-Soto, Sanz, Sanz, Schairer, Schroeder, Slade, Smith, Smith, Smith, Smith, T.F. Kemp, T.J. Bastow, Watanabe, Woessner, Worrall   +56 more
core   +1 more source

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, Egert Björn, Porzel Andrea   +2 more
doaj   +1 more source

From NMR spectra to structure

Concepts in Magnetic Resonance Part A, 2013
This article discusses the existing methods to correlate NMR parameters describing the high resolution NMR spectra of liquids and solid systems with their structural parameters. Those methods are divided into direct and indirect ones. This article includes two types of direct methods: those based on the Nuclear Overhauser Effect (NOE) contributions to ...
Facelli, Julio C., Ferraro, Marta Beatriz   +1 more
openaire   +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, David J Kiemle, Francis X Webster, Charles S Apperson, Coby Schal   +4 more
doaj   +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, Fangyu Hu, Takuya Miyakawa, Masaru Tanokura   +3 more
doaj   +1 more source