CYCLODEXTRIN DERIVATIVES IN GC SEPARATION OF RACEMIC MIXTURES OF VOLATILES .3.

The gas chromatographic performance of differently derivatized alpha-, beta-, and gamma-cyclodextrins in the separation of racemic mixtures of volatiles is investigated. The performances of 2,3,6-permethylated alpha-, beta-, and gamma-cyclodextrins and 2,6-dimethyl-3-trifluoro-ac etyl alpha-, beta-, and gamma-cyclodextrins mixed with different ratio s of OV-1701 or OV-1701-OH terminated were tested with racemates with widely differing structures. The influence of the percentage of cyclod extrins in polysiloxane, of film thickness of the stationary phase, of the length of the column, of column conditioning, and of the operatin g temperatures in the separations of different racemates has been eval uated.