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Sensitivity of secondary electrospray ionization mass spectrometry to a range of volatile organic compounds: Ligand switching ion chemistry and the influence of Zspray™ guiding electric fields
Rapid Communications in Mass Spectrometry  (IF2.419),  Pub Date : 2021-09-02, DOI: 10.1002/rcm.9187
Kseniya Dryahina, Miroslav Polášek, David Smith, Patrik Španěl

Secondary electrospray ionization (SESI) is currently only semi-quantitative. In the Zspray™ arrangement of SESI-MS, the transfer of ions from near atmospheric pressure to a triple quadrupole is achieved by guiding electric fields that partially desolvate both reagent and analyte ions which must be understood. Also, to make SESI-MS more quantitative, the mechanisms and the kinetics of the reaction processes, especially ligand switching reactions of hydrated hydronium reagent ions, H3O+(H2O)n, with volatile organic compound (VOC) molecules, need to be understood.