EP 1051731 A1 20001115 - METHOD OF ANALYZING IONS IN AN APPARATUS INCLUDING A TIME OF FLIGHT MASS SPECTROMETER AND A LINEAR ION TRAP
Title (en)
METHOD OF ANALYZING IONS IN AN APPARATUS INCLUDING A TIME OF FLIGHT MASS SPECTROMETER AND A LINEAR ION TRAP
Title (de)
VERFAHREN ZUR UNTERSUCHUNG VON IONEN IN EINEM APPARAT MIT EINEM FLUGZEIT-SPEKTROMETER UND EINER LINEAREN QUADRUPOL-IONENFALLE
Title (fr)
PROCEDE D'ANALYSE D'IONS DANS UN APPAREIL COMPRENANT UN SPECTROMETRE DE MASSE A TEMPS DE VOL ET UN PIEGE A IONS LINEAIRE
Publication
Application
Priority
- CA 9801106 W 19981203
- US 6757097 P 19971205
Abstract (en)
[origin: WO9930350A1] A method of analyzing ions is carried out in a mass spectrometer apparatus comprising an ion source, a linear RF quadrupole and a time of flight mass spectrometer. Ions are generated from the ion source and passed into the linear RF quadrupole. To retain ions within the linear RF quadrupole, potentials are applied to either end of it and it is then operated as an ion trap. Ions of interest are selected in the linear RF quadrupole and unwanted ions are caused to be ejected. Selected ions are then excited and caused to collide with a neutral gas, to cause collision induced dissociation thereof, thereby forming fragment ions for analysis in the time of flight mass spectrometer. The potential of one end of the linear RF quadrupole is then adjusted to pass selected and fragment ions through to the time of flight mass spectrometer. This enables a spectrum of the selected and the fragment ions to be obtained from the time of flight mass spectrometer.
IPC 1-7
IPC 8 full level
G01N 27/62 (2006.01); H01J 49/40 (2006.01); H01J 49/42 (2006.01)
CPC (source: EP)
H01J 49/004 (2013.01); H01J 49/40 (2013.01); H01J 49/4225 (2013.01)
Citation (search report)
See references of WO 9930350A1
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
WO 9930350 A1 19990617; AU 1329899 A 19990628; CA 2312806 A1 19990617; DE 69806415 D1 20020808; DE 69806415 T2 20030220; EP 1051731 A1 20001115; EP 1051731 B1 20020703; JP 2001526447 A 20011218
DOCDB simple family (application)
CA 9801106 W 19981203; AU 1329899 A 19981203; CA 2312806 A 19981203; DE 69806415 T 19981203; EP 98956748 A 19981203; JP 2000524809 A 19981203