Ion funnel-based collision cell
AssigneeAgilent Technologies, Inc.
InventorsKenneth R. Newton, Tong Chen, Stephen Zanon
Life of this patent
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Abstract
In some examples, an ion funnel-based collision cell may include an ion funnel entrance section formed by a plurality of adjacently disposed entrance members. Each entrance member of at least one pair of the adjacently disposed entrance members may include a successively larger opening to form a tapered or profiled entrance for ions entering the ion funnel-based collision cell. An insulation material may be disposed adjacent to or in contact with each entrance member of the at least one pair of the adjacently disposed entrance members to prevent, outside of each successively larger opening, flow of gas between each entrance member of the at least one pair of the adjacently disposed entrance members.
Claims20
An ion funnel-based collision cell comprising:
- an ion funnel entrance section formed by a plurality of adjacently disposed entrance members,
- wherein each entrance member of at least one pair of the adjacently disposed entrance members includes a successively larger opening to form a tapered or profiled entrance for ions entering the ion funnel-based collision cell;
- and
- an insulation material disposed adjacent to or in contact with each entrance member of the at least one pair of the adjacently disposed entrance members to prevent, outside of each successively larger opening, flow of gas between each entrance member of the at least one pair of the adjacently disposed entrance members.
An ion funnel-based collision cell comprising:
- an ion funnel entrance section formed by a plurality of adjacently disposed entrance members,
- wherein each entrance member of at least one pair of the adjacently disposed entrance members includes a successively larger opening to form a tapered or profiled entrance for ions entering the ion funnel-based collision cell, and
- wherein each entrance member of the at least one pair of the adjacently disposed entrance members includes a specified shape to prevent, outside of each successively larger opening, flow of gas between each entrance member of the at least one pair of the adjacently disposed entrance members.
An ion funnel-based collision cell comprising:
- an ion funnel entrance section formed by a plurality of adjacently disposed entrance members,
- wherein each entrance member of at least one pair of the adjacently disposed entrance members includes a successively larger opening;
- and
- an insulation barrier disposed adjacent to or in contact with each entrance member of the at least one pair of the adjacently disposed entrance members to control gas flow in the ion funnel-based collision cell.
Dependencies are inferred from the claim text.