An apparatus for measuring the masses of isotopes, molecules, and molecular fragments by ionizing them and determining their trajectories in electric and magnetic fields.
Example sentencesExamples
The gas chromatograph separates the substances present, and then each substance is broken into molecular fragments by the mass spectrometer.
An onboard mass spectrometer will then measure the levels of the different isotopes given off at each stage of the baking process.
It may even carry an instrument like a mass spectrometer to measure material ejected from impact.
Time-of-flight mass spectrometers measure the time it takes for each ion to reach the detector because heavier ions travel more slowly than lighter ions.
The emitted isotopes are focussed through a mass spectrometer and measured.
Definition of mass spectrometer in US English:
mass spectrometer
nounˈˌmas ˌspekˈträmədər
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.
质谱测定计
Example sentencesExamples
Time-of-flight mass spectrometers measure the time it takes for each ion to reach the detector because heavier ions travel more slowly than lighter ions.
The emitted isotopes are focussed through a mass spectrometer and measured.
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.
An onboard mass spectrometer will then measure the levels of the different isotopes given off at each stage of the baking process.