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Matrix-assisted laser desorption/ionization time-of-flight analysis of Bacillus spores using a 2.94 microm infrared laser



Matrix-assisted laser desorption/ionization time-of-flight analysis of Bacillus spores using a 2.94 microm infrared laser



Rapid Communications in Mass Spectrometry 14(18): 1701-1706



The performance of infrared (2.94 microm) and ultraviolet (337 nm) lasers were compared for analysis of purified spores of B. subtilis, B. cereus and B. globigii on a four-inch end-cap reflectron time-of-flight instrument. Infrared matrix-assisted laser desorption/ionization (IR-MALDI) mass spectra of these microorganisms displayed a larger number of biomarker peaks above m/z 4000, compared with UV-MALDI. Biomarker peaks were observed at higher m/z values with the IR laser.

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Accession: 046631521

Download citation: RISBibTeXText

PMID: 10962494

DOI: 10.1002/1097-0231(20000930)14:18<1701::aid-rcm82>3.0.co;2-i


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