EP 2013895 A2 20090114 - MASS SPECTROMETER
Title (en)
MASS SPECTROMETER
Title (de)
MASSENSPEKTROMETER
Title (fr)
SPECTROMETRE DE MASSE
Publication
Application
Priority
- GB 2007001589 W 20070430
- GB 0608470 A 20060428
- US 80177206 P 20060519
Abstract (en)
[origin: WO2007125354A2] An ion guide or mass analyser (2) is disclosed comprising a plurality of electrodes (2a) having apertures through which ions are transmitted in use. A pseudo-potential barrier is created at the exit of the ion guide or mass analyser (2). The amplitude or depth of the pseudo-potential barrier is inversely proportional to the mass to charge ratio of an ion. One or more transient DC voltages (4) are applied to the electrodes (2a) of the ion guide or mass analyser (2) in order to urge ions along the length of the ion guides or mass analyser (2). The amplitude of the transient DC voltage (4) applied to the electrode (2a) may be increased with time so that ions are caused to be emitted from the ion guide or mass analyser (2) in reverse order of their mass to charge ratio.
IPC 8 full level
H01J 49/32 (2006.01)
CPC (source: EP)
H01J 49/065 (2013.01); H01J 49/4235 (2013.01)
Citation (search report)
See references of WO 2007125354A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2007125354 A2 20071108; WO 2007125354 A3 20081002; CA 2650390 A1 20071108; CA 2650390 C 20170516; EP 2013895 A2 20090114; EP 2013895 B1 20180912; EP 2013895 B8 20190717; HK 1132839 A1 20100305; JP 2009535761 A 20091001; JP 5290960 B2 20130918
DOCDB simple family (application)
GB 2007001589 W 20070430; CA 2650390 A 20070430; EP 07732622 A 20070430; HK 09112043 A 20091222; JP 2009507174 A 20070430