Inline Ion Reaction Device Cell and Method of Operation

摘要

A method and apparatus for conducting ion to charged species reactions, more particularly reactions wherein the charged species is an electron, such as ECD. The apparatus comprises first and second pathways which are orthogonal to one another. The first pathway through which ions are introduced comprises multiple multipoles with a gap situated there between. The second pathway introduces the charged species through the gap orthogonally to the first pathway. In this way, a cross-type reaction device allows ion-charged species interactions to occur.

主权项

1. A reaction apparatus for ions comprising:
a first pathway comprising a first axial end and a second axial end disposed at a distance from the first pathway axial end along a first central axis; a second pathway comprising a first axial end and a second axial end disposed at a distance from the first axial end of the second pathway along a second central axis; said first and second central axis being substantially orthogonal to one another and having an intersection point; a first set of quadrupole electrodes arranged in a quadrupole orientation around said first central axis and disposed between said first axial end of said first pathway and said intersection point, said first set of electrodes for guiding ions along a first portion of said first central axis; a second set of quadrupole electrodes arranged in a quadrupole orientation around said first central axis and disposed between said second axial end of said first pathway and said intersection point, said second set of electrodes for guiding ions along a second portion of said first central axis; the first set of electrodes being separated from the second set of electrodes so as to form a gap transverse to said first central axis; a voltage source for providing an RF voltage to said first and second sets of electrodes to generate an RF field; a controller for controlling said RF voltages; an ion source disposed at or proximate either the first or second axial end of said first pathway for introducing ions along said first central axis towards the other of said first or second axial end of the first pathway; and a charged species source disposed at or proximate either the first or second axial end of the second pathway for introducing a charged species along the second central axis, said charged species travelling through said gap towards said intersection point.