Mass spectrometer

Details Mass spectrometer Mass spectrometer

H - Electricity

01

J

H01J 49/42 (2006.01) H01J 49/00 (2006.01) H01J 49/04 (2006.01)

Patent

CA 2594406

A device (6) for separating ions according to differences in their ion mobility as a function of electric field strength is disclosed. The device (6) comprises an upper electrode (7a), a lower electrode (7b) and a plurality of intermediate electrodes (8). An asymmetric voltage waveform is applied to the upper electrode (7a) and a DC compensating voltage is applied to the lower electrode (7b).

L'invention concerne un dispositif (6) conçu pour séparer des ions selon leurs différences au niveau de la mobilité ionique en fonction de la résistance du champ électrique. Le dispositif (6) comprend une électrode supérieure (7a), une électrode inférieure (7b) et plusieurs électrodes intermédiaires (8). On applique une forme d'onde de tension asymétrique à l'électrode supérieure (7a) et une tension de compensation en CC à l'électrode inférieure (7b).

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