Paper Chromatography

• Mobile Phase: What moves

  
• Stationary Phase: what doesn't move

  
• Water is the mobile phase as it moves up the paper.

  
• If a dye goes higher up; it is more attracted to the mobile phase. And is more soluble.

  
• In Chromatography to increase the distance of a dye: You can use a different solvent or you can wait for the solvent to travel further.

  
• Chromatography seperates dyes in a mixture.

  
• In chromatography the paper is the stationary phase.

  
• Some dyes are missing or some substances cant be seen because they are colourless.

  
• Rf = distance travelled by substance/distance travelled by solvent

  
• If a dye is too low, it is more attracted to the stationary phase. And is less soluble.