Determination of tocopherols and tocotrienols in vegetable oils and fats by high performance liquid chromatography: Results of a collaborative study and the standardised method

Abstract

The development, by collaborative study, of a standardised method far the determination of tooopherols and tocotrienols in vegetable oils and fats is described. The procedure involves separation of the individual tocopherols and tocotrienols by the direct high-performance liquid chromatography (HPLC) of a solution of the oil or fat in an organic solvent. The application of the procedure to processed products such as margarines containing added tocopherol esters was also studied. © 1988 IUPAC.