公开(公告)号：EP4362059A1

公开(公告)日：2024-05-01

申请号：EP23204424.8

申请日：2023-10-18

申请人： Thermo Finnigan LLC ,  University of Washington

发明人： REMES, Philip M. ,  YIP, Ping F. ,  MACCOSS, Michael J. ,  HEIL, Lilian

IPC分类号： H01J49/00 ,  G01N30/72 ,  H01J49/04

CPC分类号： H01J49/0027 ,  H01J49/004 ,  G01N30/72 ,  H01J49/04

摘要： A system for performing dynamic DIA directs a mass spectrometer to acquire, based on an acquisition schedule that schedules a plurality of acquisition cycles, MS2 spectra of product ions derived from analytes included in a sample as the analytes elute from a separation system. The acquisition schedule specifies, for each acquisition cycle included in the plurality of acquisition cycles, a dynamic precursor m/z range based on an expected elution time of the analytes. The product ions are produced from precursor ions isolated using an isolation window successively positioned throughout the dynamic precursor m/z range during each acquisition cycle. The system detects an elution time shift in the elution time of the analytes as the analytes elute and adjusts the acquisition schedule based on the detected elution time shift.