Mass spectrometer

H - Electricity – 01 – J

Patent

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H01J 49/40 (2006.01)

Patent

CA 2578073

A mass spectrometer is disclosed comprising an ion mobility spectrometer or separator (3) arranged upstream of a collision or fragmentation cell (5). Ions are separated according to their ion mobility within the ion mobility spectrometer or separator (3). The kinetic energy of the ions exiting the ion mobility spectrometer or separator (3) is increased substantially linearly with time in order to optimise the fragmentation energy of ions as they enter the collision or fragmentation cell (5).

L'invention porte sur un spectromètre de masse comprenant un spectromètre ou séparateur de mobilité ionique (3) placé en amont d'une cellule de collision ou fragmentation (5). Des ions sont séparés en fonction de leur mobilité à l'intérieur du spectromètre ou séparateur (3). L'énergie cinétique des ions sortant du spectromètre ou séparateur (3) de mobilité ionique s'accroît dans le temps de manière sensiblement linéaire afin d'optimiser l'énergie de fragmentation des ions au moment où ils pénètrent dans la cellule de collision ou fragmentation (5).

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