LEC 11: Chromatography Flashcards
1
Q
a chromatography technique used to separate mixture of chemical substances into its individual compounds
A
paper chromatography
2
Q
stationary phase
A
very uniform absorbent paper
3
Q
mobile phase
A
suitable liquid solvent or mixture of solvents
4
Q
ratio of the distance traveled by the solvent
A
retention factor
5
Q
high value of retention factor =
A
the interaction between the compound of interest and the surface is weak
6
Q
Rf = 0 means
A
extremely low solvent polarity
7
Q
Rf = 1 means
A
very high solvent polarity
8
Q
Rf formula
A
distance travelled by the ink from the starting line / distance travelled by the water from the starting lin
