Results 251 to 260 of about 1,079,697 (312)
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Lipid Profiling Using 1H NMR Spectroscopy
2019Lipid profiling, which includes fatty acids, phospholipids, glycerides, and cholesterols is extremely important because of the essential role lipids play in the regulation of metabolism in animals. 1H-NMR-based protocols for high-throughput lipid analysis in complex mixtures have been developed and applied to biological systems.
Miriam, Gil +3 more
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1H NMR spectroscopy of cytochrome cd1 derivatives
Archives of Biochemistry and Biophysics, 1985Proton nuclear magnetic resonance spectra are reported for cytochrome cd1 from Pseudomonas aeruginosa (ATCC 19429) in several forms including complexes of the ferricytochrome with cyanide, azide, and fluoride, a quasi-apo form in which the noncovalently associated heme d1 has been removed but the covalently bound heme c is retained, and the reduced ...
R, Timkovich, M S, Cork, P V, Taylor
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Absolute configuration of amino alcohols by 1H-NMR
Chemical Communications, 2005A general NMR spectroscopy protocol for determination of absolute configuration of 1,2-amino alcohols, that allows differentiation of the four possible stereoisomers by analysis of the 1H NMR spectra of their bis-MPA derivatives, is described.
Victoria, Leiro +3 more
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Quantitative 1H-NMR analysis of amniotic fluid
Journal of Pharmaceutical and Biomedical Analysis, 1993Ten amniotic fluid samples (36-38 weeks gestation) are analysed by NMR spectroscopy. Of the species identified in the spectra, valine (mean 198 microM: SEM 57 microM), lactate (9.73 mM; 2.05 mM), alanine (689 microM: 115 microM), acetate (6.87 mM: 1.54 mM), citrate (363 microM: 59 microM), glucose (4.54 mM: 1.28 mM) indoxyl-sulphate (n = 4,270 microM),
P E, McGowan +5 more
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Complete 1H NMR assignment of cholesteryl benzoate
Steroids, 2018The 750 MHz 1H NMR spectrum of cholesteryl benzoate (1b) could be assigned completely, which means all chemical shifts and all coupling constants, including some long-range values, were established. This task was possible by extracting many approximate coupling constant values in the overlapped spectrum region from an HSQC experiment, and using these ...
Nury, Pérez-Hernández +2 more
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1992
1H NMR spectroscopy can be used for the characterization and classification of lignins and determination of lignin structure. Ludwig (1971) reviewed the literature dealing with the 1H NMR spectroscopy of lignins through 1968, and a comprehensive 1H NMR study of lignins and lignin model compounds was published in 1964 by Ludwig et al. (1964a,b). In this
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1H NMR spectroscopy can be used for the characterization and classification of lignins and determination of lignin structure. Ludwig (1971) reviewed the literature dealing with the 1H NMR spectroscopy of lignins through 1968, and a comprehensive 1H NMR study of lignins and lignin model compounds was published in 1964 by Ludwig et al. (1964a,b). In this
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Analiza motornih benzina 1H NMR spektrometrijom
2006Prema zahtjevima norme, koja se odnosi na zahtjeve i metode ispitivanja bezolovnih motornih benzina (EN 228:2004), dozvoljena količina benzena u motornim benzinima je svega 1vol.%, s tendencijom smanjivanja njegove količine, što zahtjeva sve osjetljivije analitičke postupke određivanja, kao i validirane metode određivanja.
Srića, Vlasta +3 more
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Improved spectral resolution in cosy 1H NMR spectra of proteins via double quantum filtering.
Biochemical and Biophysical Research Communications - BBRC, 1983M. Rance +5 more
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