EP 0573579 B1 19970416 - MASS SPECTROMETRY METHOD USING SUPPLEMENTAL AC VOLTAGE SIGNALS
Title (en)
MASS SPECTROMETRY METHOD USING SUPPLEMENTAL AC VOLTAGE SIGNALS
Title (de)
MASSENSPEKTROMETRIEVERFAHREN MITTELS ZUSÄTZLICHER AC SPANNUNGSSIGNALE
Title (fr)
PROCEDE DE SPECTROMETRIE DE MASSE UTILISANT DES SIGNAUX DE TENSION AC SUPPLEMENTAIRES
Publication
Application
Priority
- US 66219191 A 19910228
- US 9201104 W 19920211
Abstract (en)
[origin: WO9215392A1] A mass spectrometry method in which one or more high power supplemental AC voltage signals and one or more low power supplemental AC voltage signals are applied to an ion trap (16). The frequency of each supplemental AC voltage is selected to match a resonance frequency of an ion having a desired mass-to-charge ratio. The low power supplemental voltage signals are applied for the purpose of dissociating specific ions (i.e., parent ions) within the trap, and the high power supplemental voltage signals are applied to resonate products of the dissociation process (i.e., daughter ions) so that they can be detected. In one class of embodiments, the high power voltage signals resonate daughter ions out from the trap for detection by an external detector (24). In another class of embodiments, each high power voltage signal resonates the daughter ions only to a degree sufficient for detection by an in-trap detector (which may comprise one or more of the electrodes (11-13) which define the trapping field, or may be mounted integrally with such electrodes).
IPC 1-7
IPC 8 full level
H01J 49/26 (2006.01); H01J 49/42 (2006.01)
CPC (source: EP)
H01J 49/0063 (2013.01); H01J 49/424 (2013.01); H01J 49/4285 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU MC NL SE
DOCDB simple family (publication)
WO 9215392 A1 19920917; AT E151915 T1 19970515; CA 2101152 A1 19920829; CA 2101152 C 19990330; DE 69219113 D1 19970522; DE 69219113 T2 19971120; DK 0573579 T3 19971020; EP 0573579 A1 19931215; EP 0573579 A4 19950809; EP 0573579 B1 19970416; ES 2106177 T3 19971101; JP 2743034 B2 19980422; JP H06508469 A 19940922
DOCDB simple family (application)
US 9201104 W 19920211; AT 92907848 T 19920211; CA 2101152 A 19920211; DE 69219113 T 19920211; DK 92907848 T 19920211; EP 92907848 A 19920211; ES 92907848 T 19920211; JP 50728992 A 19920211