Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1195167 | Journal of the American Society for Mass Spectrometry | 2010 | 5 Pages |
Facile generation of series of singly charged radical anions (Sn−•; n = 1–15) and cations (Sn+•; n = 2–11) by direct laser ionization renders elemental sulfur an excellent material for the low-mass-region calibration of time of flight (TOF) mass spectrometers. Upon irradiation by a 337-nm UV laser, elemental sulfur undergoes facile ionization without the need of an additional laser-absorbing matrix. An intense and evenly spaced set of peaks is obtained in both modes.
Graphical AbstractLaser ionization generated radical anions (Sn−•) and cations (Sn+•) from elemental sulfur are excellent for low-mass region calibration of TOF mass spectrometers.Figure optionsDownload full-size imageDownload high-quality image (72 K)Download as PowerPoint slide