I. Thin Layer Chromatography also known as TLC, is a method of separation that is used to help identify and distinguish the parts of a substance. In the process, a thin plate covered with an absorbent material such as silica gel, also known as the stationary phase, is used and placed within the substance, or the solvent, that is to be separated, allowing it to be absorbed and divided in different parts along the plate. TLC is a common chemistry practice used within many industries such as forensics, in pharmaceuticals and the production of pesticides, but it also can be used in the analysis of color. Markers, although each one seemingly a homogeneous color, are in fact a composition of a multitude of colors that help to give the marker
