https://doi.org/10.1140/epjd/e2003-00131-8
Laser desorption/ionization cluster studies for calibration in mass spectrometry
1
Gesellschaft für Schwerionenforschung (GSI)
Darmstadt, Planckstraße 1, 64291 Darmstadt, Germany
2
Institut f. Physik, Johannes Gutenberg-Universität Mainz,
55099 Mainz, Germany
3
Institut f. Physik,
Ernst-Moritz-Arndt-Universität Greifswald, 17487 Greifswald,
Germany
Corresponding author: a Klaus.Blaum@CERN.ch
Received:
10
September
2002
Published online:
3
July
2003
Precise mass calibration is mandatory in many fields of mass spectrometry. We have performed laser desorption/ionization cluster studies with a MALDI-TOF mass spectrometer on gold and fullerene targets to produce atomic clusters. These investigations demonstrate that clusters are ideally suited for this purpose. Pulsed N2-laser and Nd:YAG-laser ablation was used to produce positively as well as negatively charged clusters. Earlier observations of dianionic metal clusters are confirmed. First results from the tandem Penning trap mass spectrometer ISOLTRAP using carbon clusters as mass references show how carbon clusters can be applied to precision mass spectrometry by providing absolute mass standards.
PACS: 07.75.+h – Mass spectrometers / 32.10.Bi – Atomic masses, mass spectra, abundances, and isotopes / 36.40.Wa – Charged clusters / 82.80.Ms – Mass spectrometry (including SIMS, multiphoton ionization and resonance ionization mass spectrometry, MALDI)
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2003
