SEPARATION OF C-11 C-14 BRANCHED-CHAIN ALCOHOLS BY HIGH-RESOLUTION GAS-CHROMATOGRAPHY ON A MODIFIED BETA-CYCLODEXTRIN STATIONARY-PHASE

The separation of C-11-C-14 branched-chain alcohols and their acetyl d erivatives by gas chromatography on a fused-silica capillary column co ated with heptakis dimethylsilyl-2,3-di-O-diacetyl)-beta-cyclodextrin dissolved in OV-1701 (1:1) was studied. It is demonstrated that the se paration of positional isomers of these alcohols and their acetyl deri vatives on this stationary phase is poorer than that on Carbowax 20M. Enantiomers of the alcohols were resolved on this stationary phase at temperatures below 110 degrees C, whereas enantiomers of their acetyl derivatives were not resolved under similar conditions.