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Laser desorption ionization

Term · Chemistry · MLC-T-CHM-006458

A process in which a pulsed laser hitting a solid or liquid sample produces gas-phase ions directly. Without a matrix it often fragments organic analytes considerably, which is why matrix-assisted laser desorption/ionization (MALDI) was developed for large or labile molecules. Direct laser desorption ionization works well for inorganic materials, metals and strongly absorbing small molecules such as polycyclic aromatic hydrocarbons.

Table 1. Record
IdentifierMLC-T-CHM-006458
FieldChemistry
SubjectAnalytical Chemistry
ReferencesPAC, 2013, 85, 1515. 'Definitions of terms relating to mass spectrometry (IUPAC Recommendations 2013)' on page 1559 (https://doi.org/10.1351/PAC-REC-06-04-06)
Record as JSON
{
  "id": "MLC-T-CHM-006458",
  "term": "Laser desorption ionization",
  "field": "Chemistry",
  "definition": "A process in which a pulsed laser hitting a solid or liquid sample produces gas-phase ions directly. Without a matrix it often fragments organic analytes considerably, which is why matrix-assisted laser desorption/ionization (MALDI) was developed for large or labile molecules. Direct laser desorption ionization works well for inorganic materials, metals and strongly absorbing small molecules such as polycyclic aromatic hydrocarbons.",
  "subject": "Analytical Chemistry",
  "references": [
    "PAC, 2013, 85, 1515. 'Definitions of terms relating to mass spectrometry (IUPAC Recommendations 2013)' on page 1559 (https://doi.org/10.1351/PAC-REC-06-04-06)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/laser-desorption-ionization/"
}

Record 6,848 of 13,676 in Chemistry terminology (MLC-0109). Request the full dataset.