Chromatography presentationOpt

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Chemical Ideas 7.6 Chromatography 100’s of free ppt’s from www.pptpoint.com library
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The general principle. Use – to separate and identify components of mixtures. Several different types - paper, thin layer, gas-liquid. All use the principle of “partition” - affinity between two phases, to separate mixtures of substances. Compounds with greatest affinity for mobile phase travel further.
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All chromatography needs : Chromatography Type Stationary phase Mobile phase Paper Paper Organic or aqueous solvent. Thin layer Silica gel supported on plastic film Organic or aqueous solvent. G.L.C. High boiling point liquid on inert solid support. Inert gas e.g. nitrogen. support material – stationary phase solvent (or carrier gas ) – mobile phase.
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Series of spots forms Compare samples in mixture with known substances. • Measure R
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This note was uploaded on 11/09/2011 for the course CHEM 210 taught by Professor Wilson during the Fall '10 term at BYU.

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Chromatography presentationOpt - 100s of free ppts from...

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