I did many tested for identified the fatty acids in black cumin in my lab at Cairo Univ. Research Park and get high quality results depend on GC/MS analysis. Also, it easy and speed.
Fixed oil or fatty acid as well essential oil are commonly analyzed by GC or GC/MS not by HPLC. A lot of data about oil analysis by GC/MS are available
Dear Dr., Rashid, i did the analysis a lot of oil samples includes Fatty acid and other lipid constituents in my lab. that I am a director of chem. labs. at Cairo Univ. Res. Park, So we did the analysis for researches in all Egyptain University.