Abstract
The polarographic behavior of benzidine, N,N,N′,N′-tetramethylbenzidine, 1,4-phenylenediamine, N,N,N′,N′-tetramethyl-1,4-phenylenediamine, N,N′-diphenyl-1,4-phenylenediamine, N,N′ — bis — 4 — dimethylaminophenyl — 1,4 — phenylenediamine, 4 — dimethylamino- N-methyldiphenylamine, 4-dimethylaminodiphenylamine and 4-aminodiphenylamine has been studied in acetonitrile medium on the rotating platinum electrode and the possibility has been shown of utilizing the oxidation wave of these substances for their polarographic determination, taking into account the influence of water in the solvent and the acidity of the medium. Coulometric generation at constant current has been used to investigate the number of electrons exchanged in the reaction. The products formed in the electrode reaction are discussed.
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