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Electron paramagnetic resonance spectroscopy and the spin trapping technique were employed in order to monitor the superoxide radical liberated from potassium superoxide in aqueous alkaline solutions; DEPMPO (5-diethoxyphosphoryl-5-methyl-1-pyrroline-N-oxide) was used as a trapping agent. Three reaction systems were prepared, varying the ratios between KO2, superoxide and DEPMPO. The data indicate distinct mechanisms leading to DEPMPO/spin adducts with different kinetic rates.
| Authors: | Laura Bolojan, István Mihály Takács, Vasile Miclaus, Grigore Damian | |
| Journal: | Applied Magnetic Resonance | |
| Year: | 2012 | |
| DOI: | 10.1007/s00723-011-0310-9 | |
| Publication date: | 14-01-2012 |
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