TOF mass Spec Flashcards
1
Q
Vacuum
A
It needs to be under a vacuum otherwise air pratincoles would ionise and register on the detector
2
Q
Impact
A
Used for substances w low formula mass. Causes larger organic molecules to fragment
3
Q
Spray
A
Large ionic molecules , softer conditions = no fragmentation
4
Q
Acceleration
A
Velocity depends on mass, lighter particles = faster velocity
5
Q
Detection
A
Ions reach and generate a current. Electrons transferring from detector to positive ions
6
Q
Mass spec can measure
A
M/z Rayo & abundance
7
Q
How arenions detexted and RAM measures
A
Ions hit detector, relative abundance is proportional to size of cuttent
