A new thin-layer chromatographic system for the identification and selective separation of brilliant blue food dye: Application of a green solvent

Silica gel and polyaniline-modified silica gel were used as stationary phases with aqueous methanol as the mobile phase for the comparative study of the migration behavior of dyes in order to select the most suitable thin-layer chromatographic system for the resolution of coexisting dyes. A better separation efficiency was observed by modifying silica gel with polyaniline as compared to pure silica static phase. Densitographic presentation of...