time-of-flight mass spectrum matrix assisted laser desorption-ionisation time-of-flight mass spectrum MALDI-TOF mass spectrum https://orcid.org/0000-0001-5985-7429 2009-03-19T11:38:06Z MALDI-TOF mass spectra CHMO:0001183 MALDI-TOF-MS spectrum MALDI-TOF-MS spectra A plot of relative abundance (%) vs. mass-to-charge ratio obtained from a mass spectrometry experiment where the mass-to-charge ratio is determined from the time they take to reach a detector. The sample (usually a large organic molecule or biomolecule) is vaporised and ionised using a high-energy pulsed laser whilst being held in a matrix (such as dihydrobenzoic acid) to protect it from direct laser illumination and to separate the sample molecules. matrix assisted laser desorption-ionisation time-of-flight mass spectrum