Improvements relating to a mass spectrometer

H - Electricity – 01 – J

Patent

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H01J 49/04 (2006.01)

Patent

CA 2601707

This invention relates to mass spectrometers comprising a reaction cell and where mass spectra are collected both from unreacted ions and also from reaction product ions. In particular, although not exclusively, this invention finds use in tandem mass spectrometry where mass spectra are collected from precursor and fragment ions. The present invention provides an arrangement where ions may be sent to a reaction cell for fragmentation or other processing before onward transport to a mass analyser. Alternatively, ions may be passed directly to a mass analyser along a bypass path.

L'invention concerne des spectromètres de masse comprenant une cellule de réaction et permettant de collecter des spectres de masse à partir d'ions de produits inaltérés et d'ions de produits de réaction. Plus particulièrement, mais pas exclusivement, l'invention trouve une utilisation dans la spectrométrie de masse en tandem, les spectres de masse étant collectés à partir d'ions précurseurs et fragments. La présente invention concerne un dispositif permettant d'envoyer les ions vers une cellule de réaction en vue d'une fragmentation ou d'un autre traitement avant un transport vers un analyseur de masse. Selon une autre variante, les ions peuvent être transportés directement vers un analyseur de masse par l'intermédiaire d'un passage de contournement.

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