Abstract
With an energy dispersive X-ray absorption spectrometer, the entire spectrum of interest can be recorded simultaneously. Hence, this method is suitable for timeresolved study of structural or chemical changes in materials which are not easily repeated hundreds or thousands times. We report a preliminary result of time-resolved (1.0 second resolution) X-ray absorption measurement with the energy dispersive spectrometer for reacting aqueous solutions of Fe (NO3) 3 and Na2S2O3 mixed by a stopped-flow method. A time-dependent energy shift of Fe-K absorption edge was observed.
