公开(公告)号：WO2015181564A1

公开(公告)日：2015-12-03

申请号：PCT/GB2015/051569

申请日：2015-05-29

Applicant: SHIMADZU CORPORATION ,  WEBSTER, Jeremy

Inventor： RAPTAKIS, Emmanuel ,  PAPANASTASIOU, Dimitris ,  NIKOLOS, loannis K. ,  GILES, Roger

IPC: H01J49/24 ,  H01J49/06

CPC classification number: H01J49/067 ,  H01J49/24

Abstract: An ion transfer apparatus for transferring ions from an ion source at a first pressure, which first pressure is >500 mbar, suitably atmospheric pressure, along a path towards a mass spectrometer at a lower second pressure, comprising a plurality of pressure- control chambers each comprising an ion inlet opening for receiving therein ions from said ion source on said path and an ion outlet opening for outputting said ions on said path; wherein said plurality of pressure-control chambers are arranged in succession along said path whereby a said ion outlet opening of each pressure-control chamber is in flow communication with a said ion inlet opening of a successive adjacent pressure- control chamber; a pump apparatus in flow communication with each said pressure- control chamber via a respective plurality of pressure exhaust openings formed within each said pressure-control chamber, and arranged to control the pressure in each respective pressure-control chamber to be lower than the pressure in a preceding adjacent pressure-control chamber such that the pressure in a last of said pressure- control chambers is the lowest amongst the plurality of pressure-control chambers.

Abstract translation: 一种离子转移装置，用于在第一压力（第一压力> 500mbar）适当地大气压下将离子从离子源转移到沿质子分析仪的较低的第二压力的路径，每个压力控制室包括多个压力控制室 包括用于从所述路径上的所述离子源接收离子的离子入口和用于在所述路径上输出所述离子的离子出口; 其特征在于，所述多个压力控制室沿着所述路径连续布置，由此每个压力控制室的所述离子出口与所述相邻的压力控制室的所述离子入口开口流动连通; 一个与每个所述压力控制室经由形成在每个所述压力控制室内的相应多个压力排气开口流动连通的泵装置，并被布置成将每个压力控制室中的压力控制在低于 前一相邻的压力控制室，使得最后的压力控制室中的压力在多个压力控制室中是最低的。