HideShow resource information

Chromatography can be used to identify substances-

You can use paper chromatography to identify different substances in a mixture. It uses the fact that different substances wash through wet filter paper at different rates.

1) Put spots of each mixture being tested on a pencil baseline on filter paper.
2) Roll up the paper and put it in a beaker containing a solvent, such as ethanol or water. The baseline must be kept above the level of the solvent.
3) The solvent seeps up the paper, taking the samples with it.
4) The…


No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all Analysing substances resources »