Modern chemistry relies on instrumentation for analytical purposes, as results can be produced rapidly and more accurately than traditional 'wet' methods. One of the most important and powerful instruments is the mass spectrometer.
The mass spectrometer is used to determine the relative atomic
mass of an element from its isotopic composition.
Applications and skills
Calculations involving non-integer relative atomic masses and abundance of isotopes from given data, including mass spectra.
In Chapter 1.2