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After completing this activity, students will be able to:

  • describe the relationship between the peak height in the mass spectrum and the natural abundance of isotopes
  • differentiate between average mass, isotopic mass and nominal mass; identify the appropriate use of each in the analysis of mass spectrometric data
  • identify the molecular ion in the mass spectrum
  • identify the base peak in the mass spectrum

Chrisi Hughey, James Madison University (

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