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Chemistry > Chromotography > Flashcards

Chromotography Flashcards

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1
Q

What is chromatography?

A

The process by which small amounts of dissolved substances are separated by running a solvent along a material such as absorbent paper.

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2
Q

How does chromatography work?

A

Some substances in a mixture will dissolve better than others in a solvent and some adsorb better onto the surface of the stationary phase better than other.

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3
Q

What are the different types of chromatography?

A

Paper chromatography
Thin layer chromatography- TLC
Gas chromatography- GC
High performance liquid chromatography- HPLC

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4
Q

Why are measurements taken from the chromatogram?

A

To help identify the compounds present.

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5
Q

What are the measurements?

A

Travelled by the solvent and the distance travelled by the individual spots.

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6
Q

Formulae of chromatography?

A

Rf= distance travelled by component/ distance travelled by solvent.

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Chemistry (7 decks)

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