Electron Spin Resonance Spectrometer (ESR)

» Electron Spin Resonance Spectrometer (ESR)

Brand name: JEOL

Model name: JES FA 200

Description:

The Electron Spin Resonance Spectrometer (ESR) is an analytical instrument, utilizing the phenomenon of magnetic resonance of electrons, that measures compounds having unpaired electrons (free radicals). The instrument is used to obtain information about the amount, structure, electrons state and relaxation times of the free radicals through the magnetic properties of unpaired electrons.

ESR spectrometers have been widely used in the studies of biological organisms and semiconductors and are used to measure magnetic properties (such as paramagnetism, diamagnetism, and ferromagnetism) in substances having free radicals. For example, in field related to biological organisms, objectives of study include active oxygen species, nitrogen monoxide, nitrogen dioxide and traces metals contained in enzymes and proteins. In material-related fields, objectives of study include lattice defects in optical fibres or amorphous silicon, solutions in in conductive high polymers and peroxidized radicals in high-polymer molecules. The Electron Spin Resonance Spectrometer has characteristics of instruments for both analysis and assessment and is used in a wide range of fields, such as medical science, pharmacology, sciences, and oceanic and environmental chemistry.

The spectrometer system is designed so that it can be used for a wide range of application measurements corresponding to various study purposes, not only with the main system alone but also combined with attachments.

Location: Room G71, Block A1, Department of Physics, Universiti Putra Malaysia

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