US 11,837,452 B2
Charge detection mass spectrometry
Keith Richardson, High Peak (GB); Jeffery Mark Brown, Hyde (GB); and David J. Langridge, Bollington (GB)
Assigned to Micromass UK Limited, Wilmslow (GB)
Filed by Micromass UK Limited, Wilmslow (GB)
Filed on May 16, 2022, as Appl. No. 17/745,513.
Application 17/745,513 is a continuation of application No. 16/971,958, granted, now 11,367,602, previously published as PCT/GB2019/050494, filed on Feb. 22, 2019.
Claims priority of application No. 1802917 (GB), filed on Feb. 22, 2018.
Prior Publication US 2022/0359177 A1, Nov. 10, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H01J 49/00 (2006.01); H01J 49/06 (2006.01); H01J 49/42 (2006.01)
CPC H01J 49/0036 (2013.01) [H01J 49/067 (2013.01); H01J 49/4265 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A charge detection mass spectrometry device comprising:
an ion trap for holding one or more ions to be analysed; and
at least one charge detector within the ion trap for determining a charge for the one or more ions to be analysed,
wherein a substantially quadratic potential is applied to the ion trap such that ions undergo substantially harmonic motion within the ion trap, and
wherein the at least one charge detector is positioned at the centre of the substantially quadratic potential.