title: Ion Trapping, Storage, and Ejection in Structures for Lossless Ion Manipulations.
abstract: A new Structures for Lossless Ion Manipulations (SLIM) module, having electrode arrays patterned on a pair of parallel printed circuit boards (PCB), was constructed and utilized to investigate capabilities for ion trapping at a pressure of 4 Torr. Positive ions were confined by application of RF voltages to a series of inner rung electrodes with alternating phase on adjacent electrodes, in conjunction with positive DC potentials on surrounding guard electrodes on each PCB. An axial DC field was also introduced by stepwise varying the DC potentials applied to the inner rung electrodes to control the ion transport and accumulation inside the ion trapping region. We show that ions can be trapped and accumulated with up to 100% efficiency, stored for at least 5 h with no significant losses, and then could be rapidly ejected from the SLIM trap. The present results provide a foundation for the development of much more complex SLIM devices that facilitate extended ion manipulations.
authors.affiliation: Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States.
authors.forename: Xinyu
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States.
authors.forename: Sandilya V B
authors.initials: SV
authors.lastname: Garimella
authors.affiliation: Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States.
authors.forename: Spencer A
authors.initials: SA
authors.lastname: Prost
authors.affiliation: Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States.
authors.forename: Ian K
authors.initials: IK
authors.lastname: Webb
authors.affiliation: Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States.
authors.forename: Tsung-Chi
authors.initials: TC
authors.lastname: Chen
authors.affiliation: Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States.
authors.forename: Keqi
authors.initials: K
authors.lastname: Tang
authors.affiliation: Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States.
authors.forename: Aleksey V
authors.initials: AV
authors.lastname: Tolmachev
authors.affiliation: Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States.
authors.forename: Randolph V
authors.initials: RV
authors.lastname: Norheim
authors.affiliation: Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States.
authors.forename: Erin S
authors.initials: ES
authors.lastname: Baker
authors.affiliation: Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States.
authors.forename: Gordon A
authors.initials: GA
authors.lastname: Anderson
authors.affiliation: Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States.
authors.forename: Yehia M
authors.initials: YM
authors.lastname: Ibrahim
authors.affiliation: Biological Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352, United States.
authors.forename: Richard D
authors.initials: RD
authors.lastname: Smith
mesh_terms: D004566:Electrodes; D007477:Ions / Q000032:analysis; D013058:Mass Spectrometry / Q000295:instrumentation*
chemical_list: D007477:Ions