Supelco now offers an antioxidant standards kit containing
all 9 antioxidants listed in Association of Official Analytical
Chemists (AOAC) Official Method 983.15: Phenolic
Antioxidants in Oils, Fats, and Butter Oil, plus ethoxyquin,
an additional commonly used antioxidant. These
compounds are separated well, in less than 13 minutes, on
a SUPELCOSIL LC-18 HPLC column, under the conditions
described in the AOAC method. Several of the antioxidants
also can be resolved on a SAC-5 capillary GC column.