Chromatography Flashcards
1
Q
What is chromatography used for?
A
To separate individual components from a mixture of substance
2
Q
What is the stationary phase?
A
It does not move and is normally a solid or a liquid supported on a solid
3
Q
What is the mobile phase?
A
It does move and is normally a liquid or gas
4
Q
What is TLC?
A
THIN LAYER CHROMATOGRAPHY
Its a quick and inexpensive analytical technique. The technique uses a TLC plate (usually plastic or glass) coated with a thin layer of a solid absorbent substance - usually silica.
5
Q
What is the stationary phase in TLC?
A
The absorbent
6
Q
What is adsorption?
A
The process by which the solid silica holds the different substances in the mixture to its surface
