Abstract
Vitamins are compounds with biological activity and they are essential and fundamental for normal health and organisms growth. Vitamins are available in diet and supplements and their deficiency can lead to some human diseases. The analysis of these compounds is indispensable for monitoring their content in pharmaceuticals and food in order to prevent some human diseases.
Thin layer chromatography (TLC) is generally regarded as a common analytical method for screening, separation, and preliminary identification of compounds. TLC plays an important role in the quality control of food and drugs in order to investigate the ingredients and to detect the impurities and also for checking the purity and the stability of preparations.