What Acts as the Stationary Phase in Paper Chromatography?

Points on stationary phase in paper chromatography:

• In paper chromatography, a thin layer of water retained by the paper functions as the stationary phase during separation. 
• Cellulose fibers hold this water through hydrogen bonding and capillary retention even when solvent flows through the paper. 
• This retained aqueous layer provides the stationary environment required for chromatographic partitioning.

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