ESR, also known as electron paramagnetic resonance (EPR) or electron magnetic resonance (EMR), refers to the absorption of microwave radiation by paramagnetic species (with at least one unpaired electron spins) in a magnetic field. ESR is a non-destructive technique which can be used to probe the “static” structure of solid and liquid systems, or to investigate dynamic processes.
The JEOL JES-X320 ESR spectrometer in our lab allows measurements of samples using microwave in the X-band region. It is also equipped with a variable temperature controller (sample temperature range from -150 °C to 200 °C) and an ultraviolet irradiation apparatus (for photoexcitation of sample).
Please confirm that your sample has/will have unpaired electrons for the ESR analysis.
ESR services is located at S8-01-02 (NMR Lab), please contact chmhanyh@nus.edu.sg / 6601 7397 (Mdm Han Yanhui) or jlwl@nus.edu.sg / 6601 7419 (Dr James Loke) for further information.
Please click to download the request form for sample submission: ESR Request Form and Risk Assessment Form