Spectrometry, Mass, Electrospray Ionization

Source:http://linkedlifedata.com/resource/umls/id/C0596495

CSP: technique for dispersing ionized peptides and proteins into the gas phase for MS using low energies that leave the whole macromolecule intact, useful for molecular weight determination and sequencing; solvent evaporates from charged droplets of dilute solution to expose the macromolecular solute.,MSH: 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.

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