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GCSE Chemistry > Chemical Analysis And Instrumental Analysis > Flashcards

Chemical Analysis And Instrumental Analysis Flashcards

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0
Q

What are the advantages of machines?

A

Very sensitive
Very fast and accurate
Can be automated

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1
Q

What can paper chromatography seperate?

A

Artificial colours

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2
Q

What is gas chromatography used for?

A

Identifying substances

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3
Q

Why are substances separated in gas chromatography?

A

Because they are gases and travel at different speeds.

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4
Q

What is the time to reach the detector called?

A

The retention time.

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5
Q

How does it recognise the substances?

A

Through the retention time

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GCSE Chemistry (15 decks)

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