Precursor ion spectrum

{
  "id": "MLC-T-CHM-009364",
  "term": "Precursor ion spectrum",
  "field": "Chemistry",
  "definition": "A type of mass spectrum obtained in tandem mass spectrometry where a specific product ion is selected, and all precursor ions that fragment to yield this product ion are detected. This technique is used to identify compounds that share a common structural motif or to trace fragmentation pathways. It provides information about the parent ions of a chosen fragment.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "product ion spectrum"
  ],
  "references": [
    "PAC, 2013, 85, 1515. 'Definitions of terms relating to mass spectrometry (IUPAC Recommendations 2013)' on page 1578 (https://doi.org/10.1351/PAC-REC-06-04-06)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/precursor-ion-spectrum/"
}