Gas Chromatogrphy Flashcards
1
Q
What can GLC be used to analyse?
A
Gases, Volatile liquids and solids in their vapour form.
2
Q
What components make up the stationary phase?
A
Long coiled column. Contains a non-volaitle liquid.
3
Q
What happens in the mobile phase?
A
An inert gas moves the sample molecule through the stationary phase.
4
Q
What is the retention time?
A
The time taken for the compound being analaysed to pass through the coiled column.
5
Q
What effects the retention time? What prooperties will effect the retention times of a sample?
A
Dependant upon the amount of attraction between the sample and the stationary phase and the mobile phase. Its volatility.
6
Q
What does each peak on a chromotagraph represent?
A
a volatile compound in the analysed sample.
