Chromatography

What is chromatography? chromatography is when you use chemicals to extract the pigment.

Aim: Our aim is to extract pigments from the leaf.

Materials: boiling tube, filter paper, flint, boiling tube rack, pipet and pigment

Method:

1. We grind the leaf and add ethanol, then we extracted the pigment from it.
2. We cut a piece of filter paper then line it using pencil for about 2 cm.
3. We dropped about 2-3 ml of ethanol in the boiling tube then put the filter paper with a drop of pigment to it.
4. We then wait for the result.

Result:

The result of our experiment went pretty bad, we expected it to rise up and change colours but ours didn't and it just sank at the bottom.

Some Photos:




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Experiment 2

Aim: Our aim is to recreate the experiment we did by using felt pens that have a lot of pigments in it.

Materials: Test tube, filter paper, sellotape, splint, test tube rack, and felt pens.

Method:

1. Cut the filter paper into small thin strips.
2. Mark a dot about 2-3 cm from the bottom of the paper.
3. Put water on the test tube until the paper touches the water.
4. Wait for the result.

Result:

The result