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Varying the radio frequency: a new scanning mode for quadrupole analyzers

✍ Scribed by Benoît Landais; Claude Beaugrand; Laure Capron-Dukan; Michel Sablier; Gérard Simonneau; Christian Rolando

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 164 KB
Volume: 12
Category: Article
ISSN: 0951-4198
DOI: 10.1002/(sici)1097-0231(19980331)12:6<302::aid-rcm154>3.0.co;2-u

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✦ Synopsis

This paper describes a new scanning mode for quadrupole mass spectrometers. In accordance with the theoretical equations of ion motion in a quadrupolar field, an alternative method of scanning is possible varying only the RF applied to the rods of the quadrupole, keeping constant the amplitude of the AC and DC potentials. First results are reported for a RF scanning range of 0.4-1.1 MHz and an AC amplitude of approximately 250 V.

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