Direct analysis of vitamin A, vitamin E, carotenoids, chlorophylls and free sterols in animal and vegetable fats in a single normal-phase liquid chromatographic run

The proposed method is a faster, cost-effective and environmental-friendly alternative for routine analyses in the food quality control field, providing extensive information in one single injection, without sample pre-treatment. Moreover, it preserves the identity of the sample components, thus enabling fingerprints for authenticity purposes.