Examples of UV absorption measurements at the pulse radiolysis facility ELBENA

摘要

Three examples from the field of physical chemistry are given here in order to demonstrate the versatility of optical pulse radiolysis measurements in the UV region:(i) the formation and disappearance of O~(centre dot -) in oxygen-free solution at pH 13 has been studied again and its spectrum has been re-determined,(ii) because the value of the rate constant for the reaction of hydrogen atoms with tert-butyl alcohol became ambiguous during the last years,direct optical measurement in the UV region were carried out in which the build-up of the absorption of the subsequently formed alcohol radical was followed directly,(iii) in some preliminary experiments,fused silica (Suprasil II) was irradiated by trains of high-energy electron pulses and the subsequent absorption was recorded.