Mass spectroscopy is an analytical technique which involves ?
a. production of gaseous ions from a sample
b. separation of the gaseous ions
c. measurement of the relative abundance of the gaseous ions
d. all of the above
Mass spectroscopy involves ionising a gaseous sample (a). These are then separated by a magnetic field according to their mass to charge ratio (b). The detector will identify the relative abundance of each ion (c).
So it will do all 3.