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Method and apparatus for compressing ions

United States Patent

June 23, 2015
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
A method and apparatus for compressing ions inside an ion mobility device is disclosed. Ions are introduced into the mobility device. The ions are subjected to a non-constant electric field to form a potential gradient along a portion of the device so that ions with similar mobilities bunch together into sharper peaks while maintaining separation between other ions. The potential gradient progressively increases or decreases along the length of the device.
Garimella; Sandilya V. B. (Richland, WA), Ibrahim; Yehia M. (Richland, WA), Anderson; Gordon A. (Benton City, WA), Smith; Richard D. (Richland, WA)
14/ 179,329
February 12, 2014
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with Government support under Contract DE-AC05-76RLO1830 awarded by the U.S. Department of Energy and Grant Nos. U24 CA1690019 and P41 GM103493 awarded by the National Institutes of Health. The Government has certain rights in the invention.