Mass-spektri mõõtmisel saadavad mõõdised esitatakse tavaliselt mass-spektrina, st proovi massi ja laengu suhte funktsioonina; mass-spektri mõõtmist kasutatakse paljudes erinevates valdkondades ja seda kasutatakse nii puhaste proovide kui ka keerulistele segude korral.
The results are typically presented as a mass spectrum, a plot of intensity as a function of the mass-to-charge ratio. Mass spectrometry is used in many different fields and is applied to pure samples as well as complex mixtures.