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Traveling-Wave-Based Electrodynamic Switch for Concurrent Dual-Polarity Ion Manipulations in Structures for Lossless Ion Manipulations

Journal Article · · Analytical Chemistry
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  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  2. GAA Custom Engineering, LLC, Benton City, WA (United States)
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In this work, we describe the development of a dual-polarity traveling-wave (TW) structures for lossless ion manipulations (SLIM) ion mobility spectrometry (IMS) device capable of switching both positive and negative ions that are traveling simultaneously along the same path to different regions of the SLIM. Through simulations, the routing efficiency of the SLIM TW switch was compared to a SLIM direct-current-based (DC) switch developed previously for IMS-MS. We also report on the initial experimental evaluation of a dual-polarity SLIM platform, which uses the TW-based ion switch to achieve higher resolution multipass serpentine ultralong path with extended routing (SUPER) IMS separations. Overall, these results show that the dual-polarity TW switch is not only as effective as DC switching in terms of routing efficiency but also is agnostic to the polarity of the ions being routed.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23); National Institute of General Medical Sciences; National Cancer Institute
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
1614869
Report Number(s):
PNNL-SA--147653
Journal Information:
Analytical Chemistry, Journal Name: Analytical Chemistry Journal Issue: 22 Vol. 91; ISSN 0003-2700
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

Figures / Tables (13)

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