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A monopole mass filter with a hyperbolic V‐shaped electrode
Author(s) -
Sheretov Ernst P.,
Gurov Victor S.,
Dubkov Michael V.,
Korneeva Olga V.
Publication year - 1999
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/(sici)1097-0231(19990830)13:16<1699::aid-rcm700>3.0.co;2-t
Subject(s) - chemistry , electrode , filter (signal processing) , magnetic monopole , electrical engineering , physics , quantum mechanics , engineering
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 ° 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.