Chromatography

Question 1

What is chromatography used for?

Answer 1

To separate individual components from a mixture of substance

Question 2

What is the stationary phase?

Answer 2

It does not move and is normally a solid or a liquid supported on a solid

Question 3

What is the mobile phase?

Answer 3

It does move and is normally a liquid or gas

Question 4

What is TLC?

Answer 4

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.

Question 5

What is the stationary phase in TLC?

Answer 5

The absorbent

Question 6

What is adsorption?

Answer 6

The process by which the solid silica holds the different substances in the mixture to its surface