Animal and vegetable fats and oils; Determination of composition of the sterol fraction; Method by gas-liquid chromatography
Описание (англ.):
The method consists in saponifying a test portion, extracting the unsaponifiable matter, then separation of sterols from the unsaponifiable matter by thin-layer chromatography, followed by analysis of the separated sterols, or of prepared derivatives, by gas-liquid column chromatography.