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CH1012
CHROMATOGRAPHY I
Chromatography - relies on differences in solubility of the components of the mixture
Solvent in
Support
A
eg. SiO2
2) Column chromatography
Support = stationary phase
Solvent = mobile phase
3) Thin Layer Chromatography
Solvent
    front
x
y
Rf = x / y
A
Support is coated on glass plates
The retention factor, or Rf, is defined as the distance traveled by the compound divided by the distance traveled by the solvent from the origin (where the spot is placed)