Abstract
We report the results of a study of the effect of a supersonic gas jet on the formation and extraction of analyzed ions from a liquid supplied through a capillary to an RF quadrupole connected to a time-of-flight mass spectrometer with orthogonal ion injection. The supersonic gas jet is formed inside a cylindrical channel and passes through an electron ionization ion source. The results confirm the prospects of using a supersonic jet to creating a high-performance ion source from a liquid supplied to the vacuum region under the pressure of ~10–4 Torr.
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ACKNOWLEDGMENTS
The authors are grateful to A.A. Balakin for the fruitful discussion in this work.
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This work was partially supported by a grant from the Presidium of the Russian Academy of Sciences within the framework of subprogram 14.3 of fundamental research of the Presidium of the Russian Academy of Sciences, as well as by the Program of Fundamental Research of the Russian Academy of Sciences 2013–2020 (topic AAAA-A18-118112690060-9).
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Raznikov, V.V., Zelenov, V.V., Aparina, E.V. et al. A New Approach to the Mass Spectrometric Analysis of Aqueous Electrolyte Solutions Using a Gas-Dynamic Interface with a Gas Jet at the Inlet of a Time-of-Flight Mass Spectrometer with Orthogonal Ion Injection. J Anal Chem 76, 1505–1511 (2021). https://doi.org/10.1134/S1061934821130104
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DOI: https://doi.org/10.1134/S1061934821130104