The seven frac- tions obtained, designated as F1-F7, were analysed separately by MALDI-TOF MS and 1H NMR spectroscopy (Table 1). Fractions F6 and F7 contained the hydrolysis products maltotriose (DP3) and maltose (DP2), respec- tively, and were not further studied. The 1D 1H NMR ...
(NMR) spectroscopyspectroscopy::aspectroscopictechniquethat givesusinformationaboutthenumberandtypes ofatomsinamolecule,forexample,aboutthe numberandtypesof •hydrogenatomsusing 1 H-NMRspectroscopy •carbonatomsusing 13 C-NMRspectroscopy •phosphorusatomsusing 31 P-NMRspectroscopy 1313--33 NuclearSpin...
Chapter 1 Nuclear Magnetic Resonance Spectroscopy Molecular Spectroscopy ? Nuclear magnetic resonance (NMR) spectroscopy: a spectroscopic technique that gives us information about the number and types of atoms in a molecule, for example, about the number and types of ? hydrogen atoms using 1H-NMR ...
The comparison between clusters also included the H-NMR metabolomics-based glycoprotein, lipoprotein and LMWM profiles (Table 1). These comparisons were adjusted by age, sex and treatment to avoid confounding effects. In regard to glycoprotein profile, the individuals within the second cluster displaye...
wideline NMRdipolar couplingheteronuclear double resonancemagic angle spinningchalcogenide glassessolid electrolytesHaving started out from a traditional CW-wideline NMR background and brief forays into Mssbauer spectroscopy and biological liquid-state NMR during postdoctoral years, Professor Eckert's current ...
表2大黄素对大鼠血浆生化指标的影响(x±s,n=5)Table 2Effectsof emodin on serum biochemical indicators in rats (x±s,n=5) 2.2肾组织病理学检查 光镜检查发现1 500 mg/kg组大鼠肾近曲小管出现空泡变性,透射电镜检查发现大黄素能够引起肾细胞胞浆中出现数量较多的空泡化改变,见图 1。
The crude products were analyzed by NMR spectroscopy without further purification. Yields were calculated using CH2Br2 as an internal standard. Quantitative conversion of the starting material was achieved within 2 h in methanol (Table 1, entry 5). A Pt mesh anode was used in the control ...
H Benchtop NMR Spectroscopy for the Characterization of a Non-Aqueous Phase Liquid from a Contaminated Environment.]]>1Hbenchtop NMRcontaminationenvironmentenvironmental characterizationNAPLsite assessmentNonaqueous phase liquids (NAPLs) located at the surface of the water table and/or below the water table...
10 The para-isomer monomers and their respective polymers have been characterized by 1H NMR spectroscopy. 10 The inherent viscosities of the H-Cn Table II. Inherent viscosities and transition temperatures for the H-Cn polyesters' Polymer IJinh:dlg-! H C6 0.28 132 H-C8 0.38 124 H-CIO 0.39 ...
The chemical shifts of the C(2)–C(5) carbon atoms of 4–6, 13, 14, 17 and 18 have been assigned using two-dimensional HetCOR NMR spectroscopy. We observed that C(2,5) resonates at a lower field than C(3,4) in 4 and 6, whereas C(3,4) resonates at a lower field than C...