Definition of mass spectrometer in English:

mass spectrometer

noun

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.
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.

单词	mass spectrometer
释义	Definition of mass spectrometer in English: mass spectrometer noun 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. 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.
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