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The quadrupole ion trap is widely used in the chemical physics community for making measurements on dynamical systems, both intramolecular (e.g. ion fragmentation reactions) and intermolecular (e.g. ion/molecule reactions). In this review, we discuss linear and nonlinear resonances in quadrupole ion traps, an understanding of which is critical for operation of these devices and interpretation of the...
Recent advances in the field of ambient ionization mass spectrometry are presented briefly, with emphasis on the technique of desorption electrospray ionization (DESI). Numerical multiphase fluid dynamics simulations are used to interrogate droplet-surface collision behavior and resultant progeny droplet formation on an ambient surface subject to the conditions typically associated with DESI. Comparison...
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