Ion trapping at atmospheric pressure (760 Torr) and room temperature with a high-field asymmetric waveform ion mobility spectrometer |
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| Institution: | 1. Institute for National Measurement Standards, National Research Council of Canada, Ottawa, Ontario K1A OR6, Canada;2. Perkin-Elmer Sciex Instruments, Concord, Ontario, L4K 4V8, Canada;3. Carleton University, Ottawa, Ontario K15 5B6, Canada;1. Research Scholar, Osmania University, Hyderabad, Telangana , India;2. Sapienza University of Rome, Italy;3. Osmania University, Hyderabad, Telangana, India;1. Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China;2. Department of Mechanical and Construction Engineering, Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, NE1 8ST, United Kingdom;3. Institute of Engineering and Energy Technologies, School of Engineering and Computing, University of the West of Scotland, Paisley PA1 2BE, United Kingdom;1. Department of Physics, M.V. Lomonosov Moscow State University, Moscow 119991, Russia;2. A.V. Shubnikov Institute of Crystallography, RAS, Moscow 119333, Russia;3. Department of Physics, University of Jyväskylä, Jyväskylä 40014, Finland;4. Department of Chemistry and Bioengineering, Tampere University of Technology, Tampere 33720, Finland;5. Finnish Meteorological Institute, Helsinki 00560, Finland;6. Department of Physics and Mathematics, University of Eastern Finland, Joensuu 80101, Finland;1. Department of Radiological Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, 7-2-10 Higashiogu, Arakawa-ku, Tokyo 116-8551, Japan;2. Department of Radiological Technology, Faculty of Health Sciences, Nihon Institute of Medical Science, 1276 Shimogawara, Moroyamamachi, Irumagun, Saitama 350-0435, Japan |
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| Abstract: | A method for the confinement of ions at 760 Torr and room temperature is described. We have recently shown that a cylindrical-geometry high-field asymmetric waveform ion mobility spectrometer (FAIMS), which utilizes an ion separation technique based on the change in ion mobility at high electric fields, focuses ions in two dimensions. This article describes a FAIMS device in which the focusing is extended to three dimensions (i.e. ion trap). Characterization of the ion trap was carried out using a laboratory-constructed time-of-flight mass spectrometer. The half-life of a m/z 380 ion in the trap was determined to be 5 ms. |
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