Understanding Paper Chromatography

Front

*Front:* Paper Chromatography

Back

method for separating dissolved chemical substances by their different migration rates across paper.

Front

*Front:* Stationary Phase

Back

paper in paper chromatography.

Front

*Front:* Mobile Phase

Back

solvent that moves through the paper, carrying different substances.

Front

*Front:* Capillary Action

Back

process that moves the solvent up the paper.

Front

*Front:* Rf Value

Back

ratio of the distance traveled by the substance to the distance traveled by the solvent front.

Front

*Front:* Step 1

Back

the chromatography paper with a pencil line near the bottom.

Front

*Front:* Step 2

Back

a small spot of the sample on the pencil line.

Front

*Front:* Step 3

Back

the paper in a container with a small amount of solvent.

Front

*Front:* Step 4

Back

the solvent to rise up the paper, separating the components.

Front

*Front:* Step 5

Back

the paper when the solvent front is near the top.