Patent · US Active

Method of operating a mass filter in mass spectrometry

US9543131B2 · kind B2 · utility

3Cited by

2References

17Claims

0Family size

Assignee

THERMO FISHER SCIENTIFIC (BREMEN) GMBH · DE

Inventors

Andreas Kuehn · Ettlingen, DE
Jan-Peter Hauschild · Eindhoven, NL
Dirk Nolting · Bremen, DE
Oliver Lange · Bremen, DE
Eugen Damoc · Stuhr, DE

Key dates

Filing date	Feb 13, 2014
Grant date	Jan 10, 2017
Priority date	—
Expiry date	Feb 13, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH01J49/4215
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Disclosed herein is a mass spectrometry method having steps of: transmitting ions from an ion source through a mass filter; processing ions received from the mass filter in a discontinuous ion optical device downstream of the mass filter; operating the mass filter for a plurality of periods in a mass/charge ratio (m/z) filtering mode to transmit ions in one or more selected ranges of m/z to the discontinuous ion optical device; and operating the mass filter in a broad mass range mode transmitting ions of a mass range substantially wider than any mass range transmitted in the m/z filtering mode during one or more periods in which the discontinuous ion optical device is not processing ions from the mass filter. Utilization of this method assists to reduce contamination in the mass filter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.