Extraction of Fat-Soluble Vitamins from Human Serum Using ISOLUTE® SLE+ Prior to UHPLC/MS-MS Analysis
contributed by Biotage |
This application note describes the extraction of a panel of fat-soluble vitamins (including those representing Vitamins A, D, E & K) from human serum using ISOLUTE® SLE+ Supported Liquid Extraction plates prior to LC/MS analysis.
The simple sample preparation procedure delivers clean extracts and analyte recoveries approximately or above 90% with RSDs lower than 10% for all analytes.
Analytes
Retinol, Beta Carotene, 25-OH Vitamin D2, 25-OH Vitamin D3, Alpha Tocopherol, Phylloquinone, Menaquinone-4.
Internal Standards
D6 25-OH Vitamin D3 was used as an internal standard for 25-OH Vitamin D2, 25 OH Vitamin D3 and Retinol. It is recommended that an additional internal standard is used for Vitamin K.
Log in or register to read this article in full and gain access to The Analytical Scientist’s entire content archive. It’s FREE!