Yah00_goddess
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Essentially, the paper acts as a filter. The larger molecules travel slower than the smaller molecules. This creates bands of color.
Anonymous
Lol, anyways... this is how it works, for paper chromatography, a spot of the solution you want to develop is placed near the bottom of a piece of high grade filter paper. Then the paper is places in a developing chamber with development solvent inside which ascends the paper by capillary action and moves the components of the spotted mixture upward at differing rates. Although the paper consists mainly of pure cellulose, the cellulos does not function as the stationary phase, it absorbs the water from the atmosphere. It is this water absorbed by the cellulose that acts as the stationary phase. As the solvent ascends the paper the compounds are partitioned between the stationary water phase and the moving solvent. Because of this, the components in the mixture that are most highly water soluble (or those that have H-bonding capacity) are the ones held back and move most slowly. Ignore that answer saying larger molecules move slower, dodecane (C12H26) will move faster than ethanol (C2H6O) since ethanol has H-bonding capacity and is more soluble in water than the alkane.
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Paper Chromatography Meaning
Chinu
Paper chromatography is same as any other form of chromatography. In this case paper is a stationary phase on which the sample is loaded. The a suitable solvent (s) is then allowed to ascend on this paper by capillary action. The sample components then separate depending upon their affinity with cellulose (main paper component) and you get different bands. Aminoacids can be separated on paper chromatography.
BabeeOreo
Paper chromatography (thin-layer) is effective in separating the components of a different compound, such as separating the different colors that make up ink in a marker, or separating the different components in a leaf (the different chlorophylls, carotenes, etc).
The process is very simple, and is done in most high school and introductory-level college chemistry courses.