Chemical Analysis And Instrumental Analysis Flashcards
0
Q
What are the advantages of machines?
A
Very sensitive
Very fast and accurate
Can be automated
1
Q
What can paper chromatography seperate?
A
Artificial colours
2
Q
What is gas chromatography used for?
A
Identifying substances
3
Q
Why are substances separated in gas chromatography?
A
Because they are gases and travel at different speeds.
4
Q
What is the time to reach the detector called?
A
The retention time.
5
Q
How does it recognise the substances?
A
Through the retention time
