pulsed electron spin resonance spectroscopy spin-trap electron paramagnetic resonance spectroscopy Spectroscopy where the response of an unstable free radical to short (ns) pulses of microwave radiation in a magnetic field is measured by first forming a more stable radical adduct (e.g. a nitroxide radical) with a nitrone or nitroso compound (the 'spin trap'). spin-trap EPR spin-trap ESR 2009-10-01T04:15:59Z https://orcid.org/0000-0001-5985-7429 CHMO:0002498 spin trap ESR spin trap EPR spin-trap electron spin resonance spectroscopy