Results 341 to 350 of about 666,283 (376)

Electron spin resonance spectroscopy as an analytical tool

Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 1987
Monomethoxy- and dimethoxy-p-benzoquinones have been investigated in alkaline aqueous methanol and ethanol by electron spin resonance spectroscopy. All compounds show solvent exchange of the methoxy group(s). 2,6-Dimethoxy-p-benzoquinone dissolved in aqueous ethanol exhibits spectra of three radicals, due to partial exchange of none, one and two ...
V. Axelsen, J. A. Pedersen
openaire   +2 more sources

Investigation of the presence of OH radicals in electrolyzed NaCl solution by electron spin resonance spectroscopy.

Journal of Agricultural and Food Chemistry, 2005
In the anode side of a two-chamber electrolyzer, electrolysis of a NaCl solution generates acidic electrolyzed oxidizing (EO) water, which exhibits bactericidal effects against a large number of pathogens. This study was undertaken to investigate whether
Silvia D. Stan, J. S. Woods, M. Daeschel
semanticscholar   +1 more source

EFFECT OF ENVIRONMENTAL NUCLEI IN ELECTRON SPIN RESONANCE SPECTROSCOPY

, 1958
Occasionally an electron paramagnetic resonance absorption line is accompanied by satellite lines which result from a weak magnetic dipole-dipole interaction coupling the electron spin to a neighboring nuclear spin.
G. T. Trammell, H. Zeldes, R. Livingston
semanticscholar   +1 more source

Electron spin resonance spectroscopy, exercise, and oxidative stress: an ascorbic acid intervention study.

Journal of applied physiology, 1999
Oxygen free radicals are highly reactive species that are produced in increased quantities during strenuous exercise and can damage critical biological targets such as membrane phospholipids.
T. Ashton, I. Young, J. Peters, E. Jones, S. Jackson, B. Davies, C. Rowlands   +6 more
semanticscholar   +1 more source

Radiostability of Allantoin by Using Electron Spin Resonance Spectroscopy

Spectroscopy Letters, 2013
ABSTRACT The radiosterilization potential and dosimetric feature of allantoin were investigated through the molecular degradations produced after ultraviolet and gamma irradiation using electron spin resonance, infrared, and ultraviolet spectroscopies and thermal measurement techniques (differential thermal analysis and the glass transition temperature)
Üstündag I., Korkmaz M.
openaire   +3 more sources

Free radical scavenging activities measured by electron spin resonance spectroscopy and B16 cell antiproliferative behaviors of seven plants.

Journal of Agricultural and Food Chemistry, 2001
In an effort to discover new antioxidant natural compounds, seven plants that grow in France (most of them in the Limousin countryside) were screened. Among these plants, was the extensively studied Vitis vinifera as reference. For each plant, sequential
C. Calliste, P. Trouillas, D. Allais, A. Simon, J. Duroux   +4 more
semanticscholar   +1 more source

Electron Spin Resonance (ESR) Spectroscopy

2005
Electron spin resonance (ESR) spectroscopy, invented by Zavoiskii in 1944, is similar to NMR spectroscopy. ESR spectroscopy is an absorption spectroscopy which involves the absorption of radiation in the microwave region (104–106 MHz) by substances containing one or more unpaired electrons.
openaire   +2 more sources

Dipolar spectroscopy and spin alignment in electron paramagnetic resonance

Chemical Physics Letters, 2000
Abstract Two single-frequency techniques for refocusing (SIFTER) dipolar couplings between electron spins are introduced. The experiments are based on the solid-echo and Jeener–Broekaert sequences, well established in dipolar NMR spectroscopy of solids, and open up new routes to high-resolution two-dimensional EPR spectroscopy with only moderate ...
Jeschke, G, Pannier, M, Godt, Adelheid, Spiess, HW   +3 more
openaire   +3 more sources

Evaluation on the oxidative stability of edible oil by electron spin resonance spectroscopy.

Food Chemistry, 2020
Shouhao Jiang, Yunfei Xie, Mi Li, Yahui Guo, Yuliang Cheng, H. Qian, Weirong Yao   +6 more
semanticscholar   +1 more source

Interactions of hydrophobic lung surfactant proteins SP-B and SP-C with dipalmitoylphosphatidylcholine and dipalmitoylphosphatidylglycerol bilayers studied by electron spin resonance spectroscopy.

Biochemistry, 1995
Hydrophobic surfactant-associated proteins SP-B and SP-C have been isolated from porcine lungs and reconstituted in multilamellar vesicles of dipalmitoylphosphatidylcholine (DPPC) or dipalmitoylphosphatidylglycerol (DPPG) containing different ...
J. Pérez-Gil, C. Casals, D. Marsh
semanticscholar   +1 more source