Ionization source utilizing a jet disturber in combination with an ion funnel and method of operation

Patent · Tue Jun 24 00:00:00 EDT 2003

OSTI ID:958096

Smith, Richard D ^[1]; Kim, Taeman ^[1]; Tang, Keqi ^[1]; Udseth, Harold R ^[1]

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1. Richland, WA

A jet disturber used in combination with an ion funnel to focus ions and other charged particles generated at or near atmospheric pressure into a relatively low pressure region, which allows increased conductance of the ions and other charged particles. The jet disturber is positioned within an ion funnel and may be interfaced with a multi-capillary inlet juxtaposed between an ion source and the interior of an instrument maintained at near atmospheric pressure. The invention finds particular advantages when deployed to improve the ion transmission between an electrospray ionization source and the first vacuum stage of a mass spectrometer.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC06-76RL01830
• Assignee: Battelle Memorial Institute (Richland, WA)
• Patent Number(s): 6,583,408
• Application Number: 09/860,721
• OSTI ID: 958096
• Country of Publication: United States
• Language: English