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1980 (1)
1Author    Norio Miyoshi, Giiti TomitaRequires cookie*
 Title    Buffer Action of Reversed Micelles  
 Abstract    The optical properties (absorption and fluorescence) of fluorescein sodium were investi-gated with changing the bulk pH value in aqueous, water-methanol mixed and dodecyl-ammonium propionate reversed micellar solutions. A strong buffer action was found in the reversed micellar solutions. The pKa values for the equilibrium between fluorescein mono-and di-anions in the ground and excited singlet states highly decreased in the reversed micellar solutions compared with those in non-micellar solutions. The micellar buffer action strongly affected the initial rate of the 1,3-diphenylisobenzofuran oxidation caused by the photosensitization of fluorescein. The buffer action was closely related to the solubilized water content. 
  Reference    Z. Naturforsch. 35b, 736—740 (1980); received January 9 1980 
  Published    1980 
  Keywords    Fluorescein, Reversed Micelles, Buffer Action, Solubilized Water 
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 TEI-XML for    default:Reihe_B/35/ZNB-1980-35b-0736.pdf 
 Identifier    ZNB-1980-35b-0736 
 Volume    35