Abstract − Analytical Sciences, 23(9), 1143 (2007).
Observation of Ion-Transfer of Photochemical Reaction Products of p-Aminodiphenylamine across an Aqueous | 1,2-Dichloroethane Solution Interface by Photo-Modulation Voltammetry with an Ultraviolet Laser
Shigeru WATARIGUCHI, Yasuyuki KIBUNE, and Teruo HINOUE
Department of Chemistry, Faculty of Science, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan
Photo-modulation voltammetry with a 325-nm beam from a He-Cd laser was applied to an examination of a photochemical reaction of p-aminodiphenylamine. The photo-modulation voltammogram exhibited a peaked wave proportional to the concentration of p-aminodiphenylamine, and essentially agreed with a difference between linear scan voltammograms under irradiation and non-irradiation. From the absorption spectra of p-aminodiphenylamine and a pH dependence of the voltammograms, it was inferred that a dimer dication of p-aminodiphenylamine was photochemically formed and transferred from the aqueous solution to the 1,2-dichloroethane solution.
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