EP 1365437 A3 20060104 - Mass spectrometer and method of mass spectrometry
Title (en)
Mass spectrometer and method of mass spectrometry
Title (de)
Massenspektrometer und -verfahren
Title (fr)
Spectromètre de masse et méthode associée
Publication
Application
Priority
- GB 0211375 A 20020517
- GB 0212021 A 20020524
- GB 0212385 A 20020529
- GB 0223231 A 20021007
Abstract (en)
[origin: EP1365437A2] A mass spectrometer is disclosed wherein a z-lens 4 upstream of an orthogonal acceleration Time of Flight mass analyser 9 is repeatedly switched between a first mode wherein ions are transmitted to the mass analyser 9 for subsequent mass analysis with a relatively high transmission and a second mode wherein ions are transmitted with a relatively low transmission. If it is determined that mass spectral data obtained when the mass analyser 9 is in the first mode is suffering from saturation, then suitably scaled mass spectral data obtained when the mass analyser 9 is in the second mode is used instead. If the saturation is severe then the mass spectral data obtained in the first mode may be replaced in its entirety with mass spectral data obtained in the second mode.
IPC 8 full level
H01J 49/40 (2006.01)
CPC (source: EP)
H01J 49/0027 (2013.01)
Citation (search report)
- [YA] WO 9850941 A1 19981112 - VARIAN AUSTRALIA [AU], et al
- [Y] US 6294790 B1 20010925 - WEINBERGER SCOT R [US]
- [PX] EP 1215711 A2 20020619 - MICROMASS LTD [GB]
- [X] PATENT ABSTRACTS OF JAPAN vol. 2000, no. 13 5 February 2001 (2001-02-05)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
EP 1365437 A2 20031126; EP 1365437 A3 20060104; EP 1365437 B1 20140820
DOCDB simple family (application)
EP 02257042 A 20021010