63380 2025 eng poster 0 -- -- -- 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 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. ASMS 73rd Conference on Mass spectrometry and Allied topics Baltimore, Maryland, USA 01.06.2025 05.06.2025 publish false true Josefin Hufgard eng uncontrolled Mass spectrometry eng uncontrolled Acoustic Ion Manipulation (AIM) eng uncontrolled Traveling acoustic wave Analytische Chemie 1 Analytische Chemie; Referenzmaterialien 1.3 Instrumentelle Analytik Chemie und Prozesstechnik Chemische Charakterisierung und Spurenanalytik Datei im Netzwerk der BAM verfügbar ("Closed Access") Präsentation