title: A monopole mass filter with a hyperbolic V-shaped electrode
abstract: In this article we compare the classical monopole mass filter of von Zahn and the monopole mass filter with a hyperbolic V-shaped electrode. The experimental results and those of computer simulation for both mass spectrometers are presented. We show that the replacement of a conventional 90 degrees V-shaped electrode by an electrode with a hyperbolic profile substantially improves the peak shape of any given mass, and increases the mass resolution by a factor of 3-4 and the abundance sensitivity by a factor of 100. The potential of high analytical performance combined with electroforming techniques for electrode manufacture indicate future practical uses of such instruments. Copyright 1999 John Wiley & Sons, Ltd.
authors.affiliation: Department of Physics, Ryazan State Radio Technical University, Gagarin str, 59/1, 391000 Ryazan, Russia.
authors.initials: EP
authors.lastname: Sheretov
authors.initials: VS
authors.lastname: Gurov
authors.initials: MV
authors.lastname: Dubkov
authors.initials: OV
authors.lastname: Korneeva