Cyclic dienoic fatty acids isolated from heated linseed oil were examined by capillary gas chromatography on a variety of stationary phases. Equivalent chain lengths were determined for CP-Wax 52CB, BPX70, CP-Sil 84 and OV-275 phases. Not all cyclic dienes could be resolved on any one column. Identification and quantification of all components was possible only by analyses on CP-Wax 52CB together with BPX-70 or CP-Sil 84 columns.
Dobson, G., Christie, W. W., & Sebedio, J. L. (1996). Gas chromatographic properties of cyclic dienoic fatty acids formed in heated linseed oil. Journal of Chromatography A, 723(2), 349–354. https://doi.org/10.1016/0021-9673(95)00880-2