Extraction of Fat-Soluble Vitamins from Fortified Foods Using Oasis HLB

In this application note, the Waters Oasis HLB Cartridge effectively extracts seven different fat-soluble vitamins (FSVs) from fortified food products with good recoveries. A two-step elution method was utilized to attain maximum recoveries for all vitamins from various food matrices. As compared to hours of saponification or liquid-liquid extraction, this SPE method reduces sample preparation time to less than 30 minutes. The result is a simple, rapid, and selective method for extracting FSVs from fortified food products.