Laser desorption electron attachment time-of-flight mass spectrometry: a new approach to detection of involatile compounds

• Published in: Journal of the American Society for Mass Spectrometry Vol. 12; no. 12; pp. 1339 - 1347
• Main Authors: IngÓlfsson, Oddur, Wodtke, Alec M
• Format: Journal Article
• Language: English
• Published: New York, NY Elsevier Inc 01-12-2001; Elsevier Science; Springer Nature B.V
• Subjects: Algorithms; Analytical chemistry; Bromouracil - chemistry; Chemistry; Desorption; Electron attachment; Electrons; Exact sciences and technology; Fluorocarbons - chemistry; Fullerenes; Ions; Laser beams; Lasers; Mass spectra; Mass spectrometry; Mass Spectrometry - methods; Polyethers; Scientific imaging; Spectrometric and optical methods; Spectroscopy; Electron capture; Analysis method; Time of flight method; Non volatile compound; Fullerenes; Sulfur Fluorides; Ether polymer; Mass spectrometry; Laser desorption
• ISSN: 1044-0305; 1879-1123
• DOI: 10.1016/S1044-0305(01)00323-3

We report initial results of a new method for obtaining mass spectra of involatile compounds: laser desorption electron attachment time-of-flight mass spectrometry. With this approach, laser desorbed neutral molecules are entrained in a molecular beam and subsequently ionized by low energy electron attachment. Mass analysis is carried out by a linear time-of-flight. We present a description of the apparatus and a number of examples of our early results on: van der Waals condensates of SF
6, Fullerenes, derivatized Fullerenes, perfluorinated polyethers, polyphenylethers, and 5-bromouracil.