Glass capillary columns with liquid phases of different polarities were prepared and tested. Of the nine liquid phases used (Apiezon L, SE-30, OV-101, Ucon 50 LB 550X, Emulphor ON-870, Carbowax 20M, FFAP, SP-1000 and Silar 10C) FFAP was the most suitable for the separation of monoterpene