[Practical aspects of using silufol sheets to analyze fat-soluble vitamins].

The authors studied the mobility of the fat-soluble vitamins, A, D, K1 and beta-carotene in organic solvents and their mixtures on silufol plates, the influence of the chromatography conditions and the chamber saturation with the solvent vapors on the Rf values of fat-soluble vitamins, as well as the rate of beta-carotene tocopherol (vitamin E) and phylloquinone (vitamin K1) destruction under the effect of the day and ultra-violet light. The data obtained are presented. Phylloquinone and carotene proved to be most destroyed, while tocopherol was more resistant under the same conditions. Silufol plates can be used for the control of the production of vitamins, their analysis in varying biological objects, as well as in biochemistry, medicine and pharmaceutics.