Collect. Czech. Chem. Commun. 1985, 50, 1819-1827

Determination of carcinogenic azobenzene derivatives by constant-potential coulometry

Jiří Barek, Antonín Berka and Jiří Zima

Department of Analytical Chemistry, Charles University, 128 40 Prague 2


The reduction of azobenzene, N,N-dimethyl-4-aminoazobenzene, N,N-dimethyl-4-amino-4'-hydroxyazobenzene, and N,N-dimethyl-4-amino-4'-aminoazobenzene was studied by constant-potential coulometry, and conditions were found for the determination of milligramme quantities of these substances in their aqueous -methanolic solutions.