Chromatography of aromatic amines on thin layers of zinc ferrocyanide-silica gel G with hybrid CTAB-alcohol-water mobile phase

Department of Chemistry. Harcourt Butler Technological Institute, Kanpur-208 002, India

E-mail : dhruvksl23@rediffmail.com                             Fax: 91-512-545312

Manuscript received 6 February 2004. revised 9 September 2004. accepted 24 November 2004

Thin layer chromatography (TLC) of twenty aromatic amines on zinc ferrocyanide-silica gel G with CTAB or Brij 35-alcohol-water mobile phases has been studied. The effect of surfactant (CTAB) concentration below and above its critical micellar concentration on the rate of migration of amines (R_F value) was examined. On the basis of differential rate of migration (R_F value) some analytically important separations of aromatic amines were achieved. The method has also been applied for separation and semiquantitative determination of aromatic amines.