Two-phase stopped-flow measurement of the protonation of tetraphenylporphyrin at the liquid-liquid interface.


The formation rate of the protonated form of tetraphenylporphyrin (TPP) in a dispersed two-phase system composed of dodecane and aqueous trichloroacetic acid (TCA) was studied by means of a stopped-flow method. The protonation reaction took place at the liquid-liquid interface, and the diprotonated TPP (H(2)TPP(2+)) formed was adsorbed there. In order to… (More)
DOI: 10.1021/ac9506342


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