Matrix-assisted laser desorption/ionization mass spectrometry using a combined liquid and particulate matrix.
Note: The first particulate matrix to be used was graphite. More recently, nano particle matrices have been used. Ethane-1,2-diol (ethylene glycol) is a typical liquid.
Source:
PAC, 2020, 92, 1781. 'Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)' on page 1789 (https://doi.org/10.1515/pac-2019-0404)