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Date : Thursday, April 15, 2010
Time : 12:46 PM
Title : chemistry

It is a feasible method to use.
Advantage:
1)It can be use to detect even very small amounts of substances.
2)It can ensure that food product only contain the safe or permitted food dyes.
Disadvantage:
1)It can only seperate colour but cannot take it back.
Types of chromatography:
1)Paper chromatography
2)Gas chromatography
3)Liquid chromatography
4)Column chromatography
NICHOLAS TAN 3N1