Oximetry of oxygen supersaturated solutions using nitroxides as EPR probe
| Autor: | Nicholas J. Turro, Steffen Jockusch, Thomas K. Chen, M. Francesca Ottaviani, Alberto Moscatelli, Malcolm D. E. Forbes |
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| Rok vydání: | 2006 |
| Předmět: |
Supersaturation
Nitroxide mediated radical polymerization Chemistry Thermal decomposition Analytical chemistry chemistry.chemical_element Line width Oxygen Surfaces Coatings and Films law.invention law Materials Chemistry Physical and Theoretical Chemistry Electron paramagnetic resonance Hyperfine structure Line (formation) |
| Zdroj: | The journal of physical chemistry. B. 110(14) |
| ISSN: | 1520-6106 |
| Popis: | The broadening of the three hyperfine EPR nitroxide lines in oxygen supersaturated solutions was examined. The solutions were supersaturated with oxygen either by thermal decomposition of 1,4-peroxy-1,4-dimethylnaphthalene or by pressurizing molecular oxygen above the sample solution. The linear relationship between the Lorentzian component of the line width and the O 2 concentration was proven to hold even when the hyperfine splitting is unresolved. In this region of line broadening, the requirement for spectral simulation is discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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