U.S. Department of Energy

Pacific Northwest National Laboratory

Rectangular Ion Funnel (RIF): Conceptualization and Analytical Performance of a New ESI-MS Interface for Structures for Lossless Ion Manipulations (SLIM)

TitleRectangular Ion Funnel (RIF): Conceptualization and Analytical Performance of a New ESI-MS Interface for Structures for Lossless Ion Manipulations (SLIM)
Publication TypePresentation
Year of Publication2014
AuthorsChen T-C, Webb IK, Harrer MB, Garimella S, Prost SA, Norheim R, Zhang X, Cox JT, LaMarche BL, Tang K, Tolmachev AV, Baker ES, Anderson GA, Ibrahim YM, Smith RD
KeywordsAPI, interface, Ion Funnel, ion transmission
Abstract

SLIM devices make use of capabilities for near lossless ion focusing, transfer, and trapping in regions of elevated pressure, and are advantageous for fast ion mobility separation and gas phase reactions. As advanced methods and instrumentation related to SLIM develop, the ion introduction through the ring electrode ion funnel to SLIM with rectangular lens entrance constitute additional technological challenges. Ions can experience discontinuities in electric fields that results in losses during transmission. In this work, we are investigating a new funnel that can seamlessly couple to SLIM devices with a proper electric field at the funnel exit. The newly designed RIF for SLIM essentially aims to achieve lossless ion introduction at elevated pressure region.

Area of Research: 
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