Double-focusing mass spectrometer

{
  "id": "MLC-T-CHM-003411",
  "term": "Double-focusing mass spectrometer",
  "field": "Chemistry",
  "definition": "A mass spectrometer that employs a combination of an electric field and a magnetic field to focus ions, thereby improving both mass resolution and sensitivity. The electric sector focuses ions based on kinetic energy, and the magnetic sector focuses them based on momentum. This instrument provides highly accurate mass-to-charge ratio measurements.",
  "subject": "Physical and Biophysical Chemistry",
  "references": [
    "Orange Book, 2nd ed., p. 201 (https://media.iupac.org/publications/analytical_compendium/)",
    "PAC, 1991, 63, 1541. 'Recommendations for nomenclature and symbolism for mass spectroscopy (including an appendix of terms used in vacuum technology). (Recommendations 1991)' on page 1545 (https://doi.org/10.1351/pac199163101541)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/double-focusing-mass-spectrometer/"
}