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Differential non‐destructive image current detection in a fourier transform quadrupole ion trap
Author(s) -
Badman Ethan R.,
Patterson Garth E.,
Wells J. Mitchell,
Santini Robert E.,
Cooks R. Graham
Publication year - 1999
Publication title -
journal of mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 1076-5174
DOI - 10.1002/(sici)1096-9888(199908)34:8<889::aid-jms848>3.0.co;2-c
Subject(s) - chemistry , fourier transform , quadrupole , current (fluid) , ion , trap (plumbing) , differential (mechanical device) , ion trap , analytical chemistry (journal) , ion current , fourier transform spectroscopy , atomic physics , chromatography , mathematical analysis , physics , organic chemistry , thermodynamics , mathematics , infrared spectroscopy , meteorology
Dual‐detector differential non‐destructive Fourier transform detection in a quadrupole ion trap is shown to improve signal intensity and reduce noise compared with spectra recorded using a single detector. A larger area detector in each end‐cap electrode is machined to fit its hyperbolic shape and so minimize field imperfections on the z ‐axis. Argon, acetophenone and bromobenzene spectra were recorded to allow a comparison between single‐ and dual‐detector (differential) modes of detection and to demonstrate the improvement achieved with differential detection. Copyright © 1999 John Wiley & Sons, Ltd.