Mass spectrometer system and method for transporting and...

H - Electricity – 01 – J

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H01J 49/36 (2006.01) H01J 49/04 (2006.01) H01J 49/42 (2006.01)

Patent

CA 2218158

A mass spectrometer system for performing a separation of ions from neutrals and mass analyzing ions comprising an ion generating source with an ion introduction system, a radio-frequency ion guide and a mass analyzer disposed within a vacuum chamber. The radio-frequency ion guide is positioned with respect to the ion introduction system so that a main axis of the radio-frequency ion guide is angled toward a central axis of the ion introduction system. The trajectory of the ions is diverted toward the main axis of the radio-frequency ion guide while neutrals continue their flow along the central axis. The ions from the ion introduction system are transported via the radio-frequency ion guide to the mass analyzer.

Ce système de spectromètre de masse, destiné à effectuer une séparation d'ions à partir d'ions neutres et d'ions pour analyse de masse, comprend une source de production d'ions pourvue d'un système d'introduction de ceux-ci, un guide radiofréquence d'ions, ainsi qu'un analyseur de masse placé dans une chambre à vide. Le guide radiofréquence d'ions est placé d'une certaine manière par rapport au système d'introduction d'ions, afin que l'axe principal de ce guide forme un angle avec l'axe central du système d'introduction d'ions. La trajectoire des ions est déviée vers l'axe principal du guide, tandis que les ions neutres continuent à circuler le long de l'axe central. Les ions provenant du système d'introduction d'ions sont transportés vers l'analyseur de masse, via le guide radiofréquence d'ions.

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