Journal
REVIEW OF SCIENTIFIC INSTRUMENTS
Volume 81, Issue 7, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3458014
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Funding
- Fonds National Suisse [20-120065, 206021-117416]
- Ecole Polytechnique Federale de Lausanne (EPFL)
- Fonds der Chemischen Industrie of Germany
- Danish Research Agency [272-06-0312]
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We present here the design of a new tandem mass spectrometer that combines an electrospray ion source with a cryogenically cooled ion trap for spectroscopic studies of cold, gas-phase ions. The ability to generate large ions in the gas phase without fragmentation, cool them to similar to 10 K in an ion trap, and perform photofragment spectroscopy opens up new possibilities for spectroscopic characterization of large biomolecular ions. The incorporation of an ion funnel, together with a number of small enhancements, significantly improves the sensitivity, signal stability, and ease of use compared with the previous instrument built in our laboratory. (C) 2010 American Institute of Physics. [doi:10.1063/1.3458014]
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