Traveling Wave Acoustic Ion Manipulation (AIM) for Ion Trajectory Alteration

  • Acoustic ion manipulation (AIM) is a recent discovery reliant on the sound-ion interactions under ambient conditions. Instead of relying upon conventional electric or magnetic fields, this technique initially exploits standing acoustic waves to focus, gate, deflect, and separate ions. Compared to AIM in a standing wave scenario, the transportation of ions and their response to traveling acoustic waves remain less understood. In contrast to standing waves, which establish stationary pressure domains, traveling waves engender continuously propagating pressure variations. Here, we report on AIM effects induced by traveling acoustic waves that occur from a single-transducer setup. The changes in ion trajectory induced by acoustic traveling waves, ion-specific responses to the traveling wave and its analytical applications will be investigated. A home-built alternating-current (AC) plasma source was used to produce a laminar ion stream, positioned ~10 cm from the inlet capillary of anAcoustic ion manipulation (AIM) is a recent discovery reliant on the sound-ion interactions under ambient conditions. Instead of relying upon conventional electric or magnetic fields, this technique initially exploits standing acoustic waves to focus, gate, deflect, and separate ions. Compared to AIM in a standing wave scenario, the transportation of ions and their response to traveling acoustic waves remain less understood. In contrast to standing waves, which establish stationary pressure domains, traveling waves engender continuously propagating pressure variations. Here, we report on AIM effects induced by traveling acoustic waves that occur from a single-transducer setup. The changes in ion trajectory induced by acoustic traveling waves, ion-specific responses to the traveling wave and its analytical applications will be investigated. A home-built alternating-current (AC) plasma source was used to produce a laminar ion stream, positioned ~10 cm from the inlet capillary of an Orbitrap mass spectrometer. A Langevin-type ultrasonic transducer operated at 40 kHz and ~50 W was used to introduce a diverging sound gradient arranged perpendicular to the ion beam direction. Small model analytes, such as methanol, isopropanol, and acetone, were doped in the discharge gas flow as traces produced in the source, to differentiate from ions produced between the source and MS inlet capillary. Aerodynamic information on both the sound field and the gas stream is provided by defocusing shadowgraphy images.zeige mehrzeige weniger

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Metadaten
Autor*innen:Josefin HufgardORCiD
Koautor*innen:Julia Danischewski, Jacob T. Shelley, Jens RiedelORCiD, Yi YouORCiD
Dokumenttyp:Posterpräsentation
Veröffentlichungsform:Präsentation
Sprache:Englisch
Jahr der Erstveröffentlichung:2025
Organisationseinheit der BAM:1 Analytische Chemie; Referenzmaterialien
1 Analytische Chemie; Referenzmaterialien / 1.3 Instrumentelle Analytik
DDC-Klassifikation:Naturwissenschaften und Mathematik / Chemie / Analytische Chemie
Freie Schlagwörter:Acoustic Ion Manipulation (AIM); Mass spectrometry; Traveling acoustic wave
Themenfelder/Aktivitätsfelder der BAM:Chemie und Prozesstechnik
Chemie und Prozesstechnik / Chemische Charakterisierung und Spurenanalytik
Veranstaltung:ASMS 73rd Conference on Mass spectrometry and Allied topics
Veranstaltungsort:Baltimore, Maryland, USA
Beginndatum der Veranstaltung:01.06.2025
Enddatum der Veranstaltung:05.06.2025
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:16.06.2025
Referierte Publikation:Nein
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