Summary
Summary Different methods of chromatography
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Describes column, thin layer, gas and HPLC chromatography.
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SIMPLE CHROMATOGRAPHY6
-
separates mixtures into its components
-
identify components of a mixture
In paper chromatography ,
the water trapped in the
fibres
is the stationary phase The mobile phase is the solvent .
A component
strongly attracted the stationary phase
•
more to
will not travel very far .
A component more attracted to the mobile phase
strongly
•
will travel further up .
In separated
paper chromatography , ink can be
by using a
solvent such as water which is the Mobile phase and a
stationary phase which is the water molecules trapped
in the
paper fibres
.
The components in the ink will be attracted to the
mobile phase and but have
stationary phase , will a
higher affinity to one of them
.
distance travelled by component
Rf =
distance travelled by solvent
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