2.6 Tocopherols Quantification
An external calibration was performed prior to analyses of edible plant
oil by injecting different concentrations on the column. Standard curves
(peak area vs concentration) were calculated by linear regression
analysis. Injections in triplicate were made at each concentration for
both standards and samples. The calibration curves were constructed
using standard solutions of \(\alpha,\ \beta,\ \gamma\ \)and \(\delta\)-
tocopherols and used for quantification. The total tocopherol content is
expressed as milligram per gram FAD (mg/g FAD).