PHOTOSENSITIZED FORMATION OF SINGLET OXYGEN BY CHLOROPHYLL a IN NEUTRAL AQUEOUS MICELLAR SOLUTIONS WITH TRITON X-100 |
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| Authors: | Ivan,Kralji&# ,Natalia,Barboy Jean-Pierre, Leicknam&Dagger |
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| Affiliation: | Laboratoire de Physico-Chimie des Rayonnements, Universitéde Paris-Sud, 91405 Orsay, France;†DRA/SRIRMA, C.E.A., Saclay, BP No. 2, 91120 Gif sur Yvette, France |
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| Abstract: | Abstract— Singlet oxygen (lO2) formed in the photolysis of neutral aqueous micellar (with Triton X-100) solution of chlorophyll a (dissolved inside the micelle) is detected in the aqueous phase by a test using imidazole in the presence of p -nitrosodimethylaniline. The quantum yield of lO2 diffusing out of the micelle into the aqueous phase is also determined [θ(lO2) ⋍ 0.70–0.85]. |
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