TWO NEW METHODS OF ACTINOMETRY FOR EPR-MEASUREMENTS |
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| Authors: | J. Moan,,B. Hø vik, E. Wold |
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| Affiliation: | Department of Biophysics, Norsk Hydro's Institute for Cancer Research, Montebello, Oslo 3, Norway |
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| Abstract: | ![]()
Abstract— Two methods to perform actinometry in an EPR-cavity are described. One method is based on the observation that photoproduced anion radicals of hematoporphyrin react with the stable free radical 2,2,6,6-tetramethyl-4-piperidone-N-oxyl to eliminate the spin. The other method is based on the dye sensitized photoproduction of nitroxyl radicals resulting from the reaction of singlet oxygen with sterically hindered amines. |
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