The radiolytic decomposition of the drug diclofenac (DCF), and in limited extent, also two other widely used drugs, ibuprofen and carbamazepine, was examined using liquid chromatography (LC) methods. The efficiency of DCF decomposition was examined in function of the absorbed dose of gamma radiation, and also in the presence of selected scavengers of radicals, which are commonly present in natu...

The effect of ionizing radiation on florfenicol (FF), an antibiotic with wide antibacterial properties was investigated to determine whether it can be sterilized using high-energy radiation. FF was irradiated by E-beam radiation to doses of 25-800 kGy, and then changes in the physico-chemical properties were examined using chromatographic methods (TLC and HPLC), spectroscopic methods (NMR and M...

Purpose. Study the radiolysis of solid-state metoclopramide hydrochloride at various absorbed doses. Elucidate the structure of the degradation products to gain information on the radiolysis mechanisms. Methods. Solid-state metoclopramide samples were irradiated at several doses with gamma rays and highenergy electrons to evaluate the influence of the dose rate. High-performance liquid chromato...

The application of ionizing radiation is especially effective advanced oxidation process (AOP) for the removal of organic pollutants from waters and wastes, based on fast reactions with hydroxyl radicals formed as result of radiolysis of water. The reported investigations were carried out with the use of g irradiation from the 60Co source, while for the effective technological applications the ...

Abstract The metal retention behaviors of several simulated radiolysis products on zirconium were investigated, and it was found that acid phosphate product HDEHP has the greatest effect. effects extraction nitric concentration, temperature behavior also investigated. results showed forms complexes with resulting in organic phase. Nitric concentration change morphology thus affecting behavior. ...

Pulse Radiolysis, y-Radiolysis, 2-Deoxy-D-ribose, G-values, Radical Reactions In the photolysis of 5-bromouracil containing DNA Br atoms are expected inter mediates. In order to evaluate the possible site of attack of the Br atom at the sugar moiety of DNA the reaction of 2-deoxy-D-ribose with the Br atom (complexed with two bromide ions) was investigated. Hydroxyl radicals generated by the rad...

An improved model for nuclear fuel corrosion inside a failed waste container has been developed. The model considers the influence of the a-radiolysis products using a full radiolytic reaction set, and demonstrates that H2O2 is the dominant oxidant. Corrosion of the fuel is modelled considering both the direct oxidation of UO2 by H2O2 and the galvanically-coupled oxidation by H2O2 reduction on ...