Measurement method in which a mass spectrometer is used to measure the ratio of mass to charge and the abundance of ionized entities from a sample that has been mixed with a matrix whose role is enhancing the ion yield produced by laser ablation and electrospray ionization.
Notes: - The matrix, e.g. glycerol, allows efficient absorption of the laser energy and assists the desorption of the analyte molecules in the ejected charged droplets.
- Both positive and negative ions are observed.
See also: electrospray laser desorption ionization mass spectrometry, desorption atmospheric pressure photoionization, laser ablation electrospray ionization, desorption electrospray ionization, extractive electrospray ionization
Source:
PAC, 2020, 92, 1781. 'Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)' on page 1788 (https://doi.org/10.1515/pac-2019-0404)