Traveling-Wave-Based Electrodynamic Switch for Concurrent Dual-Polarity Ion Manipulations in Structures for Lossless Ion Manipulations
| Autor: | Isaac K. Attah, Sandilya V. B. Garimella, Yehia M. Ibrahim, Randolph V. Norheim, Gabe Nagy, Richard D. Smith, Gordon A. Anderson |
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| Rok vydání: | 2019 |
| Předmět: |
Ions
Lossless compression Ion-mobility spectrometry Chemistry business.industry 010401 analytical chemistry 010402 general chemistry 01 natural sciences Article 0104 chemical sciences Analytical Chemistry Dual (category theory) Ion Ion Mobility Spectrometry Electrode Path (graph theory) Optoelectronics Routing (electronic design automation) business Electrodes Polarity (mutual inductance) |
| Zdroj: | Anal Chem |
| ISSN: | 1520-6882 0003-2700 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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