Differential non-destructive image current detection in a fourier transform quadrupole ion trap
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.
Badman
ER
Department of Chemistry, Purdue University, West Lafayette, Indiana 47907-1393, USA.
Patterson
GE
Wells
JM
Santini
RE
Cooks
RG