Determination of OH Radicals in Acid Oxidation-Potential Water by Electron Paramagnetic Resonance
- VernacularTitle:酸性氧化电位水中羟自由基的顺磁共振测定法
- Author:
Min YANG
;
Taishi GONG
;
Yuehua KE
- Publication Type:Journal Article
- Keywords:
Water;
Disinfection;
Magnetic resonance spectroscopy;
Acid oxidation-potential water
- From:
Journal of Environment and Health
1989;0(06):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate whether ?OH radical species present in the acid oxidation-potential water (AOW). Methods Electron paramagnetic resonance spectroscopy (EPR) coupled with the spin trapping technique was used for determination of ?OH radicals. Results A seven-line spectrum characteristic of 5, 5-dimethyl-2-pyrrolidone-N-oxyl (DMPOX) was formed at first, at 60 min the spin adducted DMPO-OH with four-line spectrum characteristic and at 120 min, no spectrum was observed. Conclusion ?OH can be detected in AOW at 60 min and it may come from the interaction of active substance in the AOW.
