A distribution of ions shown by the use of a mass spectrograph or mass spectrometer.
- Their authenticity was confirmed by UV, electrospray mass spectra and high-field proton NMR spectroscopy.
- The structures of these derivatives were characterized with proton nuclear magnetic resonance, infrared and mass spectra.
- The resulting fragment ions were subjected to mass analysis to produce a tandem mass spectrum.
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Syllabification: mass spec·trum
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