ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,706,293, issued on Aug. 11, was assigned to DH Technologies Development Pte. Ltd. (Singapore).
"Reducing AC effects on ions entering ion guide with pulsing auxiliary AC" was invented by Igor Chernushevich (Toronto), Pavel Ryumin (Toronto) and Takashi Baba (Richmond Hill, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "During an accumulation time period of each time cycle of an ion guide and before a ramped AC voltage is applied to at least one set of axial rods to eject ions according to m/z value, a number of steps are performed. Ions are received from outside of the ion guide through an entrance aperture and into a first cell. A low DC voltage i...