Analytes - vitamin E
Vitamin E (alpha-tocopherol): CAS No. 59-02-9, C29H50O2, molecular weight 430.69, boiling point 210°C (0.1 mmHg), melting point 2-3°C, vapor pressure 0.00mm Hg at 25°C, non flammable, water insoluble is a pale yellow viscous oil. The exact biological function of Vitamin E in humans is unknown, although it is believed to act as an antioxidant by protecting polyunsaturated fatty acids (which are components of cellular membranes) and other oxygen sensitive substances such as Vitamin A and ascorbic acid (Vitamin C) from oxidation. It is an antioxidant found in vegetable oils and shortening that can be isolated from vegetable oils through molecular distillation, solvent extraction or absorption chromatography isolation from wheat germ. Its primary use is as a medication for the treatment of Vitamin E deficiency. It is most frequently measured in food, plasma and urine using, GC/FID and spectrophotometric methods as well as by reversed phase HPLC.