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Showing 1 to 20 of 52 for “"Proton nuclear magnetic resonance"”.
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The characterization of starches and maltodextrins by proton nuclear magnetic resonance spectroscopy
… degree of branching in $\alpha$-glucans using proton nuclear magnetic resonance (NMR) has been developed. Instrument parameters and sample conditions were investigated for their effect on determining the $\alpha$-(1,4)/$\alpha$-(1,6) linkage ratios of starches. Two methods were developed using …
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PART I. STEREOELECTRONIC EFFECTS IN PHOSPHATE ESTERS. PART II. PROTON NUCLEAR MAGNETIC RESONANCE STUDY ON THE BINDING OF TRANS-CINNAMALDEHYDE TO ALPHA-CHYMOTRYPSIN.
… EFFECTS IN PHOSPHATE ESTERS. PART II. PROTON NUCLEAR MAGNETIC RESONANCE STUDY ON THE BINDING OF TRANS-CINNAMALDEHYDE TO ALPHA-CHYMOTRYPSIN.
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Part I. Studies of Methlytin-Lithium Compounds. Part Ii. Lithium-7 and Proton Nuclear Magnetic Resonance Spectra of Methyllithium and Lithium Halide in Ether
Made available in DSpace on 2014-12-09T17:35:58Z (GMT). No. of bitstreams: 1 6808265.pdf: 4015125 bytes, checksum: e24e305998486c18a1aece31f734b711 (MD5) Previous issue date: 1967
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Structures of Werner clathrates
… thermal analysis, mass spectroscopy and proton nuclear magnetic resonance spectroscopy. Host-guest non-bonded energy relationships using atom-pair potentials are examined. Attempts have been made to estimate the association constants of sore of these computed in solution by proton nuclear …
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A study of liquid clathrates
Use was made of Nuclear Overhauser effects (nOe) and crystallography to determine the structure and packing in novel liquid clathrate systems. The stoicheiometry of the clathrates was investigated by various chemical methods including: thermogravimetric analysis, differential thermal analysis and …
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Nuclear magnetic relaxation studies of the hydration properties of potato starch and beef heart surimi analogs in relation to functionality in foods
… results obtained by oxygen-17, deuterium and proton nuclear magnetic resonance (NMR) techniques. Several waxy and mealy potato cultivars were selected for these studies: LaSoda and Pontiac (waxy) and Russet Burbank and Norchip (mealy). Potato starch was employed as model systems for novel food …
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Structures of Werner clathrates
… techniques, including mass spectroscopy, proton nuclear magnetic resonance and complex iometric titration. The clathrating phase of the second clathrate was investigated by guest-loss studies on a McBain balance followed by X-ray powder photography. Host-quest non-bonded interactions of …
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Selective criteria in Werner clathrates
… to guest ratios were elucidated by density and proton nuclear magnetic resonance spectroscopy. The thermal characteristics of the compounds were analysed by thermogravimetric analysis and differen.tial thermal analysis. The structures of two related compounds [Ni(NCS)2(Py)4] and …
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Polymer dynamics in bulk, adsorbed and solution by NMR methods
… two topics. The first part deals with deuterium nuclear magnetic resonance (²H NMR) study of bulk and adsorbed polymers. Segmental dynamics of poly(methyl acrylate) is examined in bulk and when adsorbed to anopore, alumina and silica as a function of temperature. The second part investigates …
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Structural Characterization of the Amino- and Carboxy -Terminal Domains of Troponin C by High Pressure Nuclear Magnetic Resonance
… the system. In our lab, one- and two-dimensional proton nuclear magnetic resonance is utilized to observe pressure-induced conformational changes and to isolate possible folding intermediates in proteins. Other techniques, such as computer simulations, circular dichroism, and fluorescence, are …
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Synthesis and study of the micellization behavior of a dual temperature- and pH-responsive PAA-b-PNIPAM block copolymer
… showed high conversion values for all products. Proton nuclear magnetic resonance and ultraviolet–visible spectroscopies were used to study the selfassembly of synthesized copolymers in aqueous solution and measure the lower critical solution temperatures. Results clearly showed the occurrence of …
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Flow NMR, analytical applications and theoretical aspects
The use of proton nuclear magnetic resonance (NMR) spectroscopy as an on-line continuous flow detector for liquid chromatography (LC-¹H NMR) is described. Flow inserts for electromagnet and superconducting solenoid magnets are described. Applications to fuel analysis are presented. LC-¹H NMR is …
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Synthesis and characterization of transition and some group 14 metal complexes containing ligands derived from 2-acetylpyridine and hydrazide derivatives, and their antiplasmodium activities
… (IR) spectroscopy, Mass Spectroscopy (MS) and proton Nuclear Magnetic Resonance (1HNMR) spectroscopy. Metal complexes with formulas of PbL2, Ag(HL)NO3 and Sn(L)Cl were obtained from the S-methyldithiocarbazate containing ligand. The thiocarbohydrazone ligand gave bimetallic complexes of …
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The Synthesis and Characterization Of A Functionalized Diethylenetriamine Rhenium Complex Followed By Analytical Analysis of Novel Rhenium-Luteinizing Hormone-Releasing Hormone Conjugates
… pharmacokinetics and stability. Given the nuclear characteristics of 99mTc, studying these complexes is complicated. Here we use non-radioactive rhenium (Re) in [Re(CO)3L]+ analogues to serve as safer models for 99mTc complexes. Furthermore, complexes with a [Re186/188(CO)3L]+ core have …
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Biochemical Characterization of Thermocrispum agreste TheA: A Flavin-Dependent N-hydroxylating Enzyme
… by mass spectrometry and unidimensional proton nuclear magnetic resonance (NMR). Results presented in this thesis lay the foundation for future studies of NMOs using NADPH analogues. In conjunction, these results will improve the general knowledge and understanding of flavoenzymes, …
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An investigation of radiolytic damage to biomolecules in foodstuffs
… Additionally, high-field, high-resolution proton nuclear magnetic resonance spectroscopy has been employed to assess radiolytically-induced damage to biomolecules present In shellfish.
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Liposome Encapsulated Manganese Chloride as a Liver Specific Contrast Agent for Magnetic Resonance Imaging
… possibility of using a liposome encapsulated paramagnetic ion (Mn$\sp{2+}$) as a contrast agent for magnetic resonance imaging (MRI) of the liver. Previous work with liposomes had shown that liposomes were concentrated in the liver after intravenous injection. Uptake of the vesicles into tumors …
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Characterization of alpha-cyclodextrin inclusion complexes with trans-cinnamic acid in an acid-based beverage system
… characterized using phase solubility analysis, proton nuclear magnetic resonance (H-NMR), and solid inclusion. Phase solubility analysis verified the maximum amount of cinnamic acid that α-cyclodextrin was able to host. H-NMR was used to determine the complex association constant, determine the …
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