Chemistry, asked by prachi8350, 1 year ago

describe the technique of paper chromatography​

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Answered by Anonymous
7

Paper chromatography:-

→ In paper chromatography, a special quality paper known as chromatography paper is used.

→ It acts as the stationary phase. Solution of the mixture is placed at small spot about 2 cm above the end of the chromatographic paper.

→ It is placed in closed jar containing the eluent. As the eluent rises up, the components get separated.

→ When the solvent has moved 3/4th of the chromatographic paper, the paper is removed.

→ If the spots are coloured, they will be visible at different heights from the base line.

→ If the spots are colorless they are observed under UV-light or by using appropriate spray reagent.

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