Invention Grant
- Patent Title: Interface for transporting ions from an atmospheric pressure environment to a low pressure environment
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Application No.: US17058544Application Date: 2019-06-04
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Publication No.: US11257665B2Publication Date: 2022-02-22
- Inventor: Martin F. Jarrold , Staci N. Anthony , Benjamin E. Draper
- Applicant: THE TRUSTEES OF INDIANA UNIVERSITY
- Applicant Address: US IN Bloomington
- Assignee: THE TRUSTEES OF INDIANA UNIVERSITY
- Current Assignee: THE TRUSTEES OF INDIANA UNIVERSITY
- Current Assignee Address: US IN Bloomington
- Agency: Barnes & Thornburg, LLP
- International Application: PCT/US2019/035379 WO 20190604
- International Announcement: WO2019/236572 WO 20191212
- Main IPC: H01J49/06
- IPC: H01J49/06 ; H01J49/02 ; H01J49/42 ; H01J49/24

Abstract:
An interface transports ions from a first pressure environment to a lower pressure analysis instrument and may include a first region pumped to a second pressure less than the first pressure, a first ion funnel disposed in the first region, a first ion carpet in the first region opposite an ion outlet end of the first ion funnel, a second region pumped to a third pressure less than the second pressure and greater than the instrument pressure, a second ion funnel disposed in the second region and a second ion carpet in the second region opposite an ion outlet end of the second ion funnel. Ions from the environment pass sequentially through the first and second ion funnels and into the analysis instrument. Each of the first and second ion funnels define a tapered axial passageway therethrough each defining a respective virtual jet disrupter therein.
Public/Granted literature
- US20210193447A1 INTERFACE FOR TRANSPORTING IONS FROM AN ATMOSPHERIC PRESSURE ENVIRONMENT TO A LOW PRESSURE ENVIRONMENT Public/Granted day:2021-06-24
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