which paper chromatography techniques is used for which substance and why?
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Paper chromatography, in analytical chemistry, technique for separating dissolved chemical substances by taking advantage of their different rates of migration across sheets of paper. It is an inexpensive but powerful analytical tool that requires very small quantities of material.
Explanation:
Paper chromatography is used as a qualitative analytical chemistry technique for identifying and separating colored mixtures like pigments. It is used in scientific studies to identify unknown organic and inorganic compounds from a mixture. Chromatography may be preparative or analytical. The purpose of preparative chromatography is to separate the components of a mixture for later use, and is thus a form of purification.
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