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10 cards from this deck
Investigate pigments from plant leaves using paper chromatography
1 cm above the bottom
Approximately 20 drops
Below the pencil line
Pigment distance ÷ solvent front distance
More soluble in solvent or less affinity for paper
Lower affinity to paper means travels further
More soluble in solvent means travels further
Compare RfRfRf values to known database values
Immediately after removing paper
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