ResourceSpectroscopy
Everyday EPR: Free Radicals, Captured
30 Aug 2018EPR (Electron Paramagnetic Resonance) spectroscopy is the only technique that unambiguously detects and quantifies species with unpaired electrons. These include free radicals, many transition metals, and defects in materials. Free radicals and transition metals play crucial roles in many processes such as photosynthesis, oxidation/reduction, catalysis, and polymerization reactions. As a result EPR crosses many disciplines such as medical science, biology, chemistry, physics, material science, archeology and forensics.
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NMR and EPR SpectroscopyNuclear magnetic resonance (NMR) spectroscopy is used to resolve the local chemical environment of atomic nuclei with spin, revealing information on molecular structure, dynamic processes and chemical reactions of organic molecules, from proteins to synthetics. Electron paramagnetic resonance (EPR) also known as electron spin resonance (ESR) spectroscopy is used to detect and quantify paramagnetic species in a sample, including free radicals as transition metal ions. By immersing the sample in a strong magnetic field, both NMR and EPR spectrometers probe the sample with either radio waves or microwaves respectively. A range of benchtop, solid-state and time domain NMR spectrometers & EPR spectrometers are available, as well as NMR tubes, NMR solvents, software, coils, and magnets. Find the best NMR & EPR equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Electron Magnetic Resonance