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Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization

"Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure, which enables searching at various levels of specificity.

MeSH information
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. In general, only molecular ions of the analyte molecules are produced, and almost no fragmentation occurs. This makes the method well suited for molecular weight determinations and mixture analysis.


publications
This graph shows the total number of publications written about "Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization" by people in the URMC Research Network by year, and whether "Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization" was a major or minor topic of these publication.