This article is cited in 4 papers

Character of jet flows in mass-spectrometric interfaces at various pressures and chamber lengths

S. V. Bulovich^abc, A. N. Bazhenov^abc, N. R. Gall'<sup>abc

a</sup> St. Petersburg Polytechnic University
^b The All-Russia Scientific Research Institute of Geology and Mineral Resources of the World Ocean named after academician I. S. Gramberg, Saint-Petersburg
^c Ioffe Institute, St. Petersburg

Abstract: Samples-in particular, of bioorganic matter–are usually introduced into a mass spectrometer from atmosphere to high vacuum via a gasdynamic interface that represents a chamber with intermediate pressure or a system of chambers with gradually decreasing pressure. Transformation of the character of an expanding jet flow in a single-chamber interface has been studied as dependent on the chamber length and pressure. Knowledge of this character allows the system parameters to be most effectively used so as to ensure high ion transmission and decrease mass discrimination.

 English version: Technical Physics Letters, 2012, 38:5, 463–465

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