A Miniature Cylindrical Quadrupole Ion Trap: Simulation and Experiment
- 4 November 1998
- journal article
- Published by American Chemical Society (ACS) in Analytical Chemistry
- Vol. 70 (23) , 4896-4901
- https://doi.org/10.1021/ac980908w
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.Keywords
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