For each dye, the Rf
Value is calculated. To do this, two distances are measured:
-
The distance
between the baseline and dye (centre)
-
The distance
between the baseline and the solvent front (how far the solvent travelled
from baseline)
Rf value is always
between 0 and 1
The more soluble a dye
is, the higher its Rf value will be. An insoluble dye Rf value is equal to
0
|
Use the equation:
Rf=
distance of dye from baseline/distance of solvent front from baseline
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