Definition of mass spectrometer in English:

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mass spectrometer

Pronunciation: /ˈˌmas ˌspekˈträmədər/

noun

An apparatus for separating isotopes, molecules, and molecular fragments according to mass. The sample is vaporized and ionized, and the ions are accelerated in an electric field and deflected by a magnetic field into a curved trajectory that gives a distinctive mass spectrum.
Example sentences
  • The gas chromatograph separates the substances present, and then each substance is broken into molecular fragments by the mass spectrometer.
  • It may even carry an instrument like a mass spectrometer to measure material ejected from impact.
  • The emitted isotopes are focussed through a mass spectrometer and measured.
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