chromatography Flashcards
(5 cards)
1
Q
what is the mobile phase?
A
solvent moving up the paper
2
Q
what is the stationary phase?
A
paper does not move up
3
Q
according to what, how do substances separate?
A
how soluble they are in the solvent
4
Q
what does each separate spot identify?
A
a component in a mixture
5
Q
how do you calculate the retention factor value? (RF)
A
RF = distance travelled by component / distance travelled by solvent
