Chromatography Flashcards
1
Q
What properties cause different separation times
A
size
mass
polarity
2
Q
affinity
A
how much the components are retained by the stationary phase
3
Q
Component travels quicker up the paper due to :
A
- low affinity
- high polarity
4
Q
Absorption chromatography
A
Molecules with a high affinity are released last
Stationary phase properties :
- polar or non-polar
- solid state
5
Q
Gas chromatography
A
stationary phase:
- polar or non polar
- liquid
Low boiling point travel up the mobile phase quicker
