EP 0024149 A1 19810225 - Tandem mass spectrometer and method of operating a mass spectrometer system.
Title (en)
Tandem mass spectrometer and method of operating a mass spectrometer system.
Title (de)
Tandem-Massenspektrometer und Verfahren zum Betrieb eines Massenspektrometersystems.
Title (fr)
Spectromètre de masse tandem et procédé de fonctionnement d'un système de spectromètre de masse.
Publication
Application
Priority
CA 333326 A 19790803
Abstract (en)
A tandem quadrupole mass spectrometer system in which an AC-only section (6) is close coupled with a standard AC-DC section (8) with the rods of the two sections closely longitudinally adjacent each other. The rods of the AC voltage only section (6) are of open structure, formed by thin wires to allow gas to be introduced into the system and to escape through the open structure rods (14-2). The system is suited for use with a tandem quadrupole system consisting of three sections, namely an AC-DC section (4), an AC-only section (6) and an AC-DC section (8) all close coupled, with a target gas (29) introduced into the AC-only section (6) to perform fragmentation of ions traveling through the system. In one arrangement the rods (14) of the AC-only section (6) have solid centre portions (14-1) between which the target gas is introduced, and open structure end portions (14-2) through which the target gas may flow away so that little of it enter the end AC-DC sections (4,8).
IPC 1-7
IPC 8 full level
H01J 49/04 (2006.01); H01J 49/42 (2006.01)
CPC (source: EP)
H01J 49/005 (2013.01); H01J 49/063 (2013.01); H01J 49/421 (2013.01)
Citation (search report)
- US 4148196 A 19790410 - FRENCH JOHN B, et al
- DE 2538452 A1 19760408 - EXTRANUCLEAR LAB INC
- DE 2539161 A1 19770317 - VARIAN MAT GMBH
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0024149 A1 19810225; EP 0024149 B1 19840704; CA 1134956 A 19821102; DE 3068430 D1 19840809
DOCDB simple family (application)
EP 80302634 A 19800801; CA 333326 A 19790803; DE 3068430 T 19800801