The amount of the encapsulated vitamin E was determined by GPC. Approximately 0.05 g of dried
PLLA capsule was dissolved in 5 ml of chloroform, filtered and then measured with GPC. To determined
vitamin E concentration, the area of vitamin E analyzed by liquid chromatography mode was compared
with the standard curve of vitamin E solutions at 0.05, 0.1, 0.2, and 0.4 %wt and then calculated.