Monoisotopic mass

{
  "id": "MLC-T-CHM-007547",
  "term": "Monoisotopic mass",
  "field": "Chemistry",
  "definition": "The mass of a molecule calculated using the exact masses of its most abundant naturally occurring isotopes for each constituent atom. This mass corresponds to the peak with the lowest mass-to-charge ratio in a mass spectrum of an intact molecule. It is distinct from the average molecular mass, which uses weighted average isotopic masses.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "exact mass",
    "accurate mass"
  ],
  "references": [
    "PAC, 2013, 85, 1515. 'Definitions of terms relating to mass spectrometry (IUPAC Recommendations 2013)' on page 1569 (https://doi.org/10.1351/PAC-REC-06-04-06)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/monoisotopic-mass/"
}