6.3.1

How do you calculate the Rf value?
Retention factor = (distance moved by component) / (distance moved by solvent); measure from the middle of the dot.
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What is retention time?
The time taken for each component to travel through the column.
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What can retention times identify?
The components present in a sample by comparing these to retention times for known components.
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What does the peak integration of a gas chromatogram show?
It can be used to determine the concentrations of components in the sample.
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Can you create a calibration curve?
You should be able to; run the gas chromatogram with different standard solutions of different concentrations.
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Do you know all the tests for functional groups?
You should know the tests for alkenes, haloalkanes, phenols, carbonyls, aldehydes, primary and secondary alcohols and aldehydes, and carboxylic acids; A2 textbook page 246.
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What is the test for phenols?
Phenols by weak acidity (using indicator) but with no reaction with CO3 ^2-.
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Other cards in this set

Card 2

Front

What is retention time?

Back

The time taken for each component to travel through the column.

Card 3

Front

What can retention times identify?

Back

Preview of the front of card 3

Card 4

Front

What does the peak integration of a gas chromatogram show?

Back

Preview of the front of card 4

Card 5

Front

Can you create a calibration curve?

Back

Preview of the front of card 5
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