A Miniature Cylindrical Quadrupole Ion Trap: Simulation and Experiment
Analytical Chemistry1998Vol. 70(23), pp. 4896–4901
Citations Over TimeTop 12% of 1998 papers
Abstract
A cylindrical quadrupole ion trap (r(0) = 2.5 mm, z(0) = 2.88 mm, ∼(1)/(64) of the volume of commercial hyperbolic ion traps) has been constructed, its geometry optimized, and its performance examined in the mass-selective instability scan mode. Spectra of ionized perfluorotributylamine and o-dichlorobenzene show a resolution (m/Δm, 50% valley definition) of ∼100. The instrument has been coupled to a membrane introduction system to test its applicability for on-line reaction monitoring and to determine detection limits. Simulations using the ion trap simulation program are used to explore the effects of geometry on performance and to validate the experimental results.
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