Planar flow-by-electrode capacitive electrospray ion source

H - Electricity – 01 – J

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H01J 49/04 (2006.01) B01D 17/06 (2006.01)

Patent

CA 2496392

An electrospray ion source includes a chamber including a channel region therein, the channel including at least one inlet for directing a solution into the channel and at least a first and a second outlet for transmitting the solution or derivatives therefrom out from channel. Structure for separating ions in the solution is provided from separating the solution into at least a first and a second flow stream portion. The first flow stream portion is enriched in negative ions and the second flow stream portion is enriched in positive ions. The first flow stream portion is adapted to exit the chamber through the first outlet while the second flow stream portion is adapted to exit the chamber through the second outlet. A method of charge separation can include the step of simultaneously providing at least two gas phase ion stream portions having opposite polarity.

Source d'ions d'électronébulisation comprenant une chambre possédant une zone de passage, ce passage comportant au moins une entrée servant à diriger une solution vers l'intérieur du canal et au moins une première et une deuxième sortie servant à évacuer de ce canal la solution ou ses dérivés. Une structure sert à séparer les ions contenus dans la solution et permet de séparer cette dernière en au moins un premier et un deuxième flux. Le premier flux est enrichi en ions négatifs et le deuxième flux est enrichi en ions positifs. Ce premier flux est conçu pour sortir de la chambre par la première sortie tandis que le deuxième flux est conçu pour sortir de la chambre par la deuxième sortie. Un procédé de séparation de charge peut consister à produire simultanément au moins deux flux d'ions en phase gazeuse possédant des polarités opposées.

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