Forensics: Paper Chromatography
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In paper chromatography, which is the mobile phase?
answer
solvent
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In paper chromatography, which separates the components of the ink?
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Interactions with the filter paper slow the movements of various components of the ink differently.
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Which describes Rf ?
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the ratio of the distance of a spot to the distance of the solvent front
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Which solvent(s) ran off the paper in the time allotted?
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-water-alcohol mixture -water
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Which color spots were in the dye from the red marker?
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-pink -red
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Which marker had a spot or streak with an Rf value of approximately 0.67?
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red
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Which was the slowest spot in the black marker's chromatogram?
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lightblue
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Which chromatography solvent had the best separation while remaining on the paper in the allotted time?
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alcohol
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Which marker or markers had Rf values that matched the ink in the ransom note?
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-red -black
