chem 21 fall 2009 experiment 6 thin layer chromatography pre lab preparation 1 an introduction to tlc can be found at www chemguide co uk analysis chromatography thinlayer html ignore ...
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...Chem fall experiment thin layer chromatography pre lab preparation an introduction to tlc can be found at www chemguide co uk analysis thinlayer html ignore the little green note blocks within that text and we ll using screw cap jars not beakers in a few sentences describe how works sketch what plate might look like after development with solvent use your drawing show r value is determined f extremely valuable analytical technique organic it provides rapid separation of compounds thereby gives indication number nature components mixture also used identify by comparison known samples check purity compound or monitor progress reaction extraction purification procedure this will introduce you mechanics chemical principles behind first part separate soluble spinach extract second analyze separated last normally done on small glass plastic coated solid most common are silica sio alumina al o stationary phase mobile sample applied near bottom as spot then placed jar containing ml climbs up c...