High performance liquid chromatography method for the simultaneous determination of α-, γ- and δ-tocopherol in vegetable oils in presence of hexadecyltrimethylammonium bromide/n-propanol in mobile phase

► α-, γ- and δ-Tocopherol by RP-HPLC with CTAB/n-propanol. ► Appropriate sensitivity and limits of detection and quantification values. ► Tocopherols present in vegetable oils.