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NAL Agricultural Thesaurus
U.S. Department of Agriculture

Concept Breadcrumbs

Research, Technology, Methods > methodology > analytical methods > spectroscopy > mass spectrometry > matrix-assisted laser desorption-ionization mass spectrometry
Preferred Term:

matrix-assisted laser desorption-ionization mass spectrometry

Definition:
A mass spectrometric technique that is used for the analysis of large biomolecules. Analyte molecules are embedded in an excess matrix of small organic molecules that show a high resonant absorption at the laser wavelength used. The matrix absorbs the laser energy, thus inducing a soft disintegration of the sample-matrix mixture into free (gas phase) matrix and analyte molecules and molecular ions.
Concept Schemes:
NALT Full
Broader Concept:
mass spectrometry
Entry Terms:
  • matrix-assisted laser desorption-ionization time-of-flight mass spectrometry
  • SELDI-MS (mass spectrometry)
  • SELDI mass spectrometry
  • MALDI-TOF-MS (mass spectrometry)
  • surface enhanced laser desorption ionization mass spectrometry
  • MALDI mass spectrometry
  • MALDI-MS (mass spectrometry)
  • MALDI-TOF mass spectrometry
URI:
https://lod.nal.usda.gov/nalt/207987
Download this Concept:
RDF/XMLCreated 2013-11-13, last modified 2018-02-09