Paper Chromatography by Inas Abou Ghouch Zain Eldeen

22330789_ — 2023-12-26 21:03:40 UTC

What can you observe?

22330789_ — 2023-12-26 21:04:50 UTC

In chromatography, we use special paper to put a mixture on, and then we let a liquid move over the paper. This liquid separates the mixture into different parts as it travels. It's like giving the mixture a wash on paper to see its different components.

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22330789_ — 2023-12-26 21:07:52 UTC

In paper chromatography, we use special paper called chromatography paper that stays still-stationary. The moving part is the liquid we use, called the solvent. We put a mix on the paper, and it goes in a special container with the liquid.

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22330789_ — 2023-12-26 21:08:16 UTC

Colored parts show up at different levels. For clear parts, we might need special lights or sprays. The distance the liquid travels is the solvent front, and we use the Retardation factor (Rf) to talk about how each color stuck to the paper.

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22330789_ — 2023-12-26 21:14:49 UTC

The liquid moves up the paper and takes the mix with it. As it goes up, different parts of the mix stick to the paper at different levels. That's how we separate them and see their colors in different spots.

22330789_ — 2023-12-26 21:21:43 UTC

22330789_ — 2023-12-26 21:24:37 UTC

Watch this video to reinforce what you've learned!