Effect of position of substitution on the separation behavior of deuterated toluene

Abstract The position and number of deuterium atoms substituted onto the toluene molecule was found to affect its separation behavior on a silver nitrate-water column. Substitution on the ring affected the capacity ratio substantially while substitution on the methyl group had no measurable effect. At the same time, the separation behaviors of benzene and perdeuterobenzene were examined using several other salt solutions and polar liquids as possible stationary phases.