Stevenson’s rule

{
  "id": "MLC-T-CHM-011407",
  "term": "Stevenson’s rule",
  "field": "Chemistry",
  "definition": "A principle in mass spectrometry stating that the charge in a dissociative ionization process tends to reside on the fragment with the lower ionization energy. This rule provides a qualitative prediction for the fragmentation patterns observed in electron ionization mass spectra. It is applied to understand the relative abundance of product ions.",
  "subject": "Analytical Chemistry",
  "references": [
    "PAC, 2013, 85, 1515. 'Definitions of terms relating to mass spectrometry (IUPAC Recommendations 2013)' on page 1593 (https://doi.org/10.1351/PAC-REC-06-04-06)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/stevensons-rule/"
}