What is thin layer chromatography?

Question

What is thin layer chromatography?

Answer 1

It separates a substance to be measured from the mixture that contains it. Per Wikipedia: Chromatography may be preparative or analytical. Preparative chromatography seeks to separate the components of a mixture for further use (and is thus a form of purification). Analytical chromatography normally operates with smaller amounts of material and seeks to measure the relative proportions of analytes in a mixture. The two are not mutually exclusive

Answer 2

"Chromatography is used to separate mixtures of substances into their components....Thin layer chromatography is done exactly as it says - using a thin, uniform layer of silica gel or alumina coated onto a piece of glass, metal or rigid plastic."

this website explains it in detail using a pen as an example