Collect. Czech. Chem. Commun. 1984, 49, 2751-2755

Spectrophotometric and paper chromatographic analysis of mixtures of 4-nitrotoluene-2-sulphonic acid and 4,4'-dinitrostilbene-2,2'-disulphonic acid

Jiří Barek and Ivo Daňhel

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


Mixtures of 4-nitrotoluene-2-sulphonic and 4,4'-dinitrostilbene-2,2'-disulphonic acids were analyzed by a direct spectrophotometric method and by a method consisting of their paper chromatographic separation and d.c. polarographic determination.