chromatography

• chromatography

  • a method used to separate mixtures into their different chemicals
• solvent

  • the chemical used to dissolve the sample in chromatography
• solvent front

  • the maximum distance the solvent moves up the paper
• stationary phase

  • the medium (e.g. paper) through which the mobile phase passes in chromatography
• mobile phase

  • the solvent (e.g. water) that carries the sample (e.g. ink) in chromatography
• Rf value

  • a value (always less than one) that shows how far the substance has moved compared to the solvent.
  • equation : $\frac{dis\tan ce\ moved\ by\ subs\tan ce}{dis\tan ce\ moved\ by\ solvent}$ ($\frac{dot}{water}$)