Mass Spectromitry Flashcards
(7 cards)
1
Q
What does the number of peaks tell us on a graph?
A
The number of isotopes
2
Q
What does the M+ give us?
A
The mr of compound
3
Q
What happens when a sample of organic compound is vaporised?
A
It’s molecules are bombarded with electrons this kicks out an electron from the molecule to give a molecular ion m+
4
Q
Where will the Mr come on mass spectrum?
A
Further to the right
5
Q
What’s the m+1 peak due to?
A
Losing one e-
6
Q
Where do the fragments come from?
A
Directly from the molecular ion
7
Q
How does Olympic drug testing identify a positive sample?
A
Compare the mass spectrum with a data base of known mass spectrum
