What is the principle involved in paper chromatography?

Answer 1

The stationary phase in paper chromatography is paper (cellulose, polar materials like polysaccharide). So if you have a mixture of compounds with different polarity, you can separate them on paper chromatography by applying eluent(s) because the retention time of more polar compound(s) will be longer than the less polar compound(s)

Answer 2

The distribution of substances between the stationary and mobile phase according to their affinity, size and solubility in a special type of paper. Substances like sugars, drugs. etc. are separated through this method and then are measured separately to determine their exact concentration.