MeSH Browser

MeSH Heading: Spectrometry, Mass, Electrospray Ionization
Tree Number(s): E05.196.566.600
Unique ID: D021241
RDF Unique Identifier: http://id.nlm.nih.gov/mesh/D021241
Scope Note: A mass spectrometry technique used for analysis of nonvolatile compounds such as proteins and macromolecules. The technique involves preparing electrically charged droplets from analyte molecules dissolved in solvent. The electrically charged droplets enter a vacuum chamber where the solvent is evaporated. Evaporation of solvent reduces the droplet size, thereby increasing the coulombic repulsion within the droplet. As the charged droplets get smaller, the excess charge within them causes them to disintegrate and release analyte molecules. The volatilized analyte molecules are then analyzed by mass spectrometry.
Entry Term(s): ESI Mass Spectrometry; Electrospray Ionization Mass Spectrometry
Previous Indexing: Spectrum Analysis, Mass (1985-2000)
Public MeSH Note: 2001
History Note: 2001
Date Established: 2001/01/01
Date of Entry: 2000/06/22
Revision Date: 2006/07/05

Allowable Qualifiers: classification (CL)

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instrumentation (IS)

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Concept UI: M0352282
Scope Note: A mass spectrometry technique used for analysis of nonvolatile compounds such as proteins and macromolecules. The technique involves preparing electrically charged droplets from analyte molecules dissolved in solvent. The electrically charged droplets enter a vacuum chamber where the solvent is evaporated. Evaporation of solvent reduces the droplet size, thereby increasing the coulombic repulsion within the droplet. As the charged droplets get smaller, the excess charge within them causes them to disintegrate and release analyte molecules. The volatilized analyte molecules are then analyzed by mass spectrometry.
Terms: Spectrometry, Mass, Electrospray Ionization Preferred Term
Term UI T405053
Date01/14/2000
LexicalTag NON
ThesaurusID NLM (2001); Electrospray Ionization Mass Spectrometry
Term UI T401664
Date12/06/1999
LexicalTag NON
ThesaurusID NLM (2001); ESI Mass Spectrometry
Term UI T401665
Date12/06/1999
LexicalTag NON
ThesaurusID NLM (2001)

Spectrometry, Mass, Electrospray Ionization MeSH Descriptor Data 2024