Chromatography

F324

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  • Created by: Kath
  • Created on: 01-06-14 13:24
What does a solid stationary phase separate compounds by?
adsorption
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What does a liquid stationary phase separate by?
relative solubility
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Name the stationary phase in thin layer chromatography?
thin layer of adsorbent on inert support
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Why is it important to seal the jar containing the TLC plate?
to slow the evaporation of the solvent from the TLC plate
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What is the correct definition of an Rf value?
distance moved by component divided by distance moved my solvent front
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What is the definition of retention time?
the time taken for a particular compound to travel through the column to the detector, from injection to leaving the column
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What is the benefit of coupling gas chromatography with mass spectrometry
gas chromatography separates compounds and mass spectra can be compared to a database
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Other cards in this set

Card 2

Front

What does a liquid stationary phase separate by?

Back

relative solubility

Card 3

Front

Name the stationary phase in thin layer chromatography?

Back

Preview of the front of card 3

Card 4

Front

Why is it important to seal the jar containing the TLC plate?

Back

Preview of the front of card 4

Card 5

Front

What is the correct definition of an Rf value?

Back

Preview of the front of card 5
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Comments

jdellams

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good quiz didnt quit understand some of the questions

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