Method and apparatus for providing two-dimensional...

Details Method and apparatus for providing two-dimensional... Method and apparatus for providing two-dimensional...

H - Electricity

01

J

H01J 49/42 (2006.01)

Patent

CA 2539221

A method and apparatus for manipulating ions using a two~ dimensional substantially quadrupole field, and a method of manufacturing and operating an apparatus for manipulating ions using a two-dimensional substantially quadrupole field are described. The field has a quadrupole harmonic with amplitude A2 and a hexapole harmonic with amplitude A3. The amplitude A3 of the hexapole component of the field is selected to improve the performance of the field with respect to ion selection and ion fragmentation.

La présente invention a trait à un procédé et un appareil pour la manipulation d'ions au moyen d'un champ bidimensionnel sensiblement quadrupolaire, et à un procédé de fabrication et de fonctionnement d'un appareil de manipulation d'ions utilisant un champ bidimensionnel sensiblement quadrupolaire. Le champ présente une harmonique quadrupolaire avec une amplitude <I>A¿2?</I> et une harmonique hexapolaire avec une amplitude <I>A¿3?</I>. L'amplitude <I>A¿3?</I> de la composante hexapolaire du champ est sélectionnée pour améliorer la performance du champ par rapport à la sélection d'ions et à la fragmentation d'ions.

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