A new dual cell trap for selective ion accumulation and separation in ESI-FTICR mass spectrometry

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:210666

Chen, R; Bruce, J E; Cheng, Xueheng ^[1]

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1. Pacific Northwest Lab., Richland, WA (United States); and others

The selective accumulation from externally generated low ion currents in an FTICR mass spectrometer can be effectively accomplished. The selective ion accumulation process can facilitate many types of studies, and is particularly effective in conjunction with continuous injection from an electrospray source. However, this technique also requires relative high background gas pressure ({ge} 10{sup -5} Torr), which can limit the optimal performance for subsequent FTICR measurements at pressure of {approximately}10{sup -8} Torr and below. To resolve these conflicting demands, the authors have designed a new dual cell-type of ion trap. The first cell is sealed in a box which is slightly larger than the cell itself.

• OSTI ID: 210666
• Report Number(s): CONF-9505261--
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
DESIGN
DYNAMIC MASS SPECTROMETERS
ION CYCLOTRON-RESONANCE
MASS SPECTROSCOPY
PERFORMANCE
PROTEINS