Abstract
The chromatographic behaviour of 35 primary aromatic amines was investigated by soap thin-layer chromatography, the amount of detergent on the layer and the concentration of methanol and hydrochloric acid in the eluent being varied. The R M versus pH trends of the different amines on layers of silanized silica gel, alone and impregnated with 2% and 4% triethanolamine dodecylbenzenesulphonate solutions, are discussed. Several interesting separations that cannot be effected by either ion-exchange or reversed-phase chromatography were carried out.
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