Mass Spectrometer Flashcards
1
Q
What state must the sample be for a mass spectrometer? Why?
A
Gaseous, for the ions to move freely.
2
Q
How is the sample ionised in a mass spectrometer? To form what type of ion?
A
Positive ions formed.
As the electron gun shots high speed electrons at the sample, to knock off an electron.
3
Q
What is used to accelerate the positive ions in a mass spectrometer?
A
Electric field.
4
Q
Where do ions go to be deflected according to their mass/charge in a mass spectrometer?
A
Magnetic field.
5
Q
What can be calculated from the mass spectrum data?
A
The Ar of an element.
6
Q
What are the common Cl isotopes and their abundance?
A
Cl - 35(3/4) & 37(1/4)
Cl2 - 70(9/16) & 72(6/16) & 74(1/16)
