THIN-LAYER CHROMATOGRAPHIC BEHAVIOR OF CARBAMATE PESTICIDES AND RELATED-COMPOUNDS

The thin-layer chromatographic behaviour of carbaryl, carbendazim (Bavistin), carbofuran. propoxur, phenol, 4-chlorophenol, o-nitrophenol, alpha-naphthol and beta-naphthol was examined on alumina, barium sulphate, calcium carbonate, calcium phosphate, calcium sulphate, cellulose and silica gel G in solvents such as acetone, benzene, carbon tetrachloride, chloroform, ethanol and distilled water. The important separations achieved were carbendazim from carbaryl, propoxur, 4-chlorophenol, o-nitrophenol, alpha-naphthol and beta-naphthol; carbaryl, propoxur, alpha-naphthol and beta-naphthol from carbofuran, phenol, 4-chlorophenol and o-nitrophenol; and o-nitrophenol from carbofuran, phenol and 4-chlorophenol.