Electron paramagnetic resonance (EPR) or electron spin resonance
(ESR) spectroscopy is a technique for studying chemical species that have one or more unpaired electrons, such as organic and inorganic free radicals or inorganic complexes possessing a transition metal ion.
A preliminary estimate, based on a technique called electron spin resonance
(ESR), is that the piece of skull is 15,400 years old.
In this book, Interaction of Polymers with Polluted Atmospheres, novel results obtained by other physicochemical methods especially electron spin resonance
spectroscopy are considered for various polymers.
Simic is also using electron spin resonance
(ESR) to detect food-borne free radicals--highly reactive chemical compounds that appear in bone or cuticle (such as shrimp shell) after exposure to irradiation.
is the winner of a prestigious R&D-100 award for the development of the world's smallest electron spin resonance
(ESR/EPR) spectrometer, called Micro-ESR.
Discusses the analytical methods for investigating the antioxidant properties of wheat grain and fractions and their phytochemical composition, including spectrophotometric and fluorometric methods and electron spin resonance
The past twenty years have seen extraordinary advances in electron spin resonance
(ESR) techniques, particularly as they apply to polymeric materials.
The RFD test, which uses electron spin resonance
(ESR) spectroscopy to predict whether a ship's engines are experiencing raw fuel contamination or excessive blow-by, enables Mobil to recommend problem-specific maintenance actions to minimize a customer's downtime and labor costs.
Contract notice: Rcptm - spectrometer for electron spin resonance
The essence of the electron spin resonance
phenomenon is the resonance absorption of electromagnetic radiation of the unpaired electrons.
He explains the structure and function of the skin, free radicals and how they damage biological systems, the skin's endogenous antioxidant network, the effects of solar radiation on the skin, lipid peroxidation and free radicals and their measurement, antioxidant assays, electron spin resonance
, treatment of the skin with antioxidants and their efficacy, and antioxidants used in formulations, their physical/chemical properties, and references to analytical and efficacy studies that substantiate their performance and effectiveness.