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Tuesday, March 19, 2019

chromatography

Aim to do more stuff on chromatography 



Title; 

Separate the Components of Ink


Materials: 

  • Chromatography paper or strips Pens, markers, or another source ink Test tube Cork stopper Paper clip Pencil Water

Process: Cut the chromatography paper into sections measuring 12 cm by 2 cm if you do not have access to pre-made strips.

Draw a pencil line across the strip 2 cm from the bottom.

Dot a small, concentrated circle of ink on the centre of the line.

Pierce the base of the cork stopper with the paper clip. Attach the other end of the clip to the paper strip by piercing a hole through the end opposite of the pencil line.

Fill the test tube with enough water to submerge the end of the strip without touching the pencil line or ink dot.

Place the cork in the test tube with the strip hanging down.

Remove the strip and place it on a flat surface. The ink will have separated into various pigments.

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