Wednesday, 19 October 2011

Chromatography Lab

During a lab, remember to follow the rules and also be safe!
  1. In this lab, we've observed how chromatography works.
  2. By putting a blob of food colouring on the strip of chromatography paper and placing it in water, one could observe the different colours that make up the original food colouring.
  3. After observing, we measured the distance between the solvent(d1) and the solute(d2) and got the Rf value.
  • The Rf value is d1/d2.
  • The Rf value cannot be less than 0 or greater than 1.

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