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Title: Ion Trapping, Storage, and Ejection in Structures for Lossless Ion Manipulations

A structure for lossless ion manipulation (SLIM) module was constructed with electrode arrays patterned on a pair of parallel printed circuit boards (PCB) separated by 5 mm and utilized to investigate capabilities for ion trapping at 4 Torr. Positive ions were confined by application of RF having alternating phases on a series of inner rung electrodes and by positive DC potentials on surrounding guard electrodes on each PCB. An axial DC field was also introduced by stepwise varying the DC potential of the inner rung electrodes so as to control the ion transport and accumulation inside the ion trap. We show that ions could be trapped and accumulated with 100% efficiency, stored for at least 5 hours with no losses, and could be rapidly ejected from the SLIM trap.
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Publication Date:
OSTI Identifier:
Report Number(s):
48680; 48135; KP1601010
DOE Contract Number:
Resource Type:
Journal Article
Resource Relation:
Journal Name: Analytical Chemistry, 87(12):6010-6016
Research Org:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Org:
Country of Publication:
United States
lossless ion trapping; high pressure; SLIM; ion manipulation; ion storage; ion accumulation; ion release; Environmental Molecular Sciences Laboratory