Luminescence in the oxidation of isoproterenol by the superoxide anion radical in dimethyl sulfoxide |
| |
| Authors: | Irena Kruk Teresa Michalska Aleksandra K?adna |
| |
| Institution: | 1. Institute of Physics , Technical University of Szczecin , Al. Piastów 17, Szczecin, 70–310, Poland;2. Department of Human Ecology, Faculty of Natural Sciences , University of Szczecin , Al. Piastów 40 b/6, Szczecin, 71–065, Poland |
| |
| Abstract: | Chemiluminescence appearing during oxidation of isoproterenol using chemical system involving superoxide anion radical has been studied. Chemiluminescence and fluorescence spectra were measured. The chemiluminescence spectrum was measured with cut‐off filters and revealed bands with maximum at 440, 480, 550, 640 and 700 nm. The bands at 480, 640 and 700 nm were similar to those observed for singlet oxygen. The fluorescence spectrum exhibited maximum at 560 nm. The inhibitory effect of several biologically important compounds known as O2 ?‐ HO? and 1O2 scavengers on the light emission was studied. The obtained results indicate that oxidation of isoproterenol by O2 ?‐ involves products in the electronically excited states. The data also seem to indicate the protective effect of isoproterenol on the deoxyribose degradation. |
| |
| Keywords: | Isoproterenol chemiluminescence fluorescence oxygen radicals |
|
|
