chromatography

Chromatography 

Introduction: –
Chromo – color
Graphy – writing
Tswett was the first to use the chromatography technique.
It is a Russian scientist.
 it describes the separation of color plant pigment he used a column of Aluminium.
Yellow – xanthophyll
Green – chlorophyll 
Orange – carotenoids 
He has separated three compounds.

Principle: –

Five principal in the world for chromatography.
1. Adsorption Chromatography 
2. Partition Chromatography 
3. Ion exchange Chromatography 
4. Size exclusion Chromatography 
5. Affinity Chromatography