unit 1 module 3 (HT) 0.0 / 5 ? ChemistrySpectroscopyA2/A-levelOCR Created by: charlieCreated on: 04-01-15 22:58 mobile phase phase that moves in chromatography 1 of 6 stationary phase phase that doesn't move in chromatography 2 of 6 adsorption process by which solid holds molecules of gas or liquid or solute as thin film on surface of a solid or more rarely a liquid 3 of 6 Rf value distance moved by component / distance moved by solvent front 4 of 6 retention time gas chromatography is the time for component to pass from column inlet to detector 5 of 6 chemical shift scale comparing frequency of an NMR absorption with the frequency of the reference peak of TMS at chemical shift = 0 ppm 6 of 6
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