Simulation of Ion Motion at Atmospheric Pressure: Particle Tracing Versus Electrokinetic Flow

TitleSimulation of Ion Motion at Atmospheric Pressure: Particle Tracing Versus Electrokinetic Flow
Publication TypeJournal Article
Year of Publication2012
AuthorsWissdorf, Walter, Pohler Larissa, Klee Sonja, Müller David, and Benter Thorsten
JournalJournal of The American Society for Mass Spectrometry
Volume23
Issue2
Pagination397-406
ISSN1044-0305
Abstract

Results obtained with two computational approaches for the simulation of ion motion at elevated pressure are compared with experimentally derived ion current data. The computational approaches used are charged particle tracings with the software package SIMION ver. 8 and finite element based calculations using the software package Comsol Multiphysics ver. 4.0/4.0a. The experimental setup consisted of a tubular corona discharge ion source coupled to a cylindrical measurement chamber held at atmospheric pressure. Generated ions are flown into the chamber at essentially subsonic laminar isothermal conditions. In the simulations, strictly stationary conditions were assumed. The results show very good agreement between the SIMION/SDS model and experimental data. For the Comsol model, only qualitative agreement is observed.

URLhttp://dx.doi.org/10.1007/s13361-011-0290-x
DOI10.1007/s13361-011-0290-x