Ms Flashcards
1
Q
How to we know that we have two cl or br atom on the ms
A
If we have known and happens to have two peaks separated by two mass units, the less massive units happens to be three times the height of the more massive peak means chlorine 35 will be higher
2
Q
Ionisation source in MS
A
Atmospheric pressure chemically ionisation (APCI)
Atmospheric pressure photo ionisation (APPI)
Electrospray ionisation (ESI)
3
Q
Benefit of adding reflections
A
It increase resolution
4
Q
How increasingly kinetic energy affect ms
A
High kinetic energy are delayed long to elute
5
Q
What are ms analyzer
A
Time of flight and quadrupole
6
Q
What happens at low vacuum (high pressure)
A
It can cause the fragment or the ions to react
