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Title: Design of a TW-SLIM Module for Dual Polarity Confinement, Transport, and Reactions

Abstract

Here we describe instrumental approaches for performing dual polarity ion confinement, transport, ion mobility separations and reactions in Structures for Lossless Ion Manipulations (SLIM). Previous means of ion confinement in SLIM based upon rf- generated pseudopotentials and dc fields for lateral confinement cannot trap ions of opposite polarity simultaneously. Here we explore alternative approaches to provide lateral confinement of both ion polarities. Traveling wave ion mobility (IM) separations experienced by both polarities in such SLIM cause ions of both polarities migrate in the same directions and exhibit similar separations. The ion motion (and relative motion of the two polarities) under both surfing and IM separation conditions are discussed. Strategies to separate the two populations to minimize reactive losses during transport are presented. A theoretical treatment of the time scales over which two populations (injected into a dc field-free region of the dual polarity SLIM device) interact is considered, and SLIM designs for allowing ion/ion interactions and other manipulations with dual polarities at 4 torr are presented.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Org.:
USDOE
OSTI Identifier:
1368110
Report Number(s):
PNNL-SA-123670
Journal ID: ISSN 1044-0305; 49531; 48680; KP1601010
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of the American Society for Mass Spectrometry; Journal Volume: 28; Journal Issue: 7
Country of Publication:
United States
Language:
English
Subject:
Environmental Molecular Sciences Laboratory

Citation Formats

Garimella, Sandilya V. B., Webb, Ian K., Prabhakaran, Aneesh, Attah, Isaac K., Ibrahim, Yehia M., and Smith, Richard D. Design of a TW-SLIM Module for Dual Polarity Confinement, Transport, and Reactions. United States: N. p., 2017. Web. doi:10.1007/s13361-017-1680-5.
Garimella, Sandilya V. B., Webb, Ian K., Prabhakaran, Aneesh, Attah, Isaac K., Ibrahim, Yehia M., & Smith, Richard D. Design of a TW-SLIM Module for Dual Polarity Confinement, Transport, and Reactions. United States. doi:10.1007/s13361-017-1680-5.
Garimella, Sandilya V. B., Webb, Ian K., Prabhakaran, Aneesh, Attah, Isaac K., Ibrahim, Yehia M., and Smith, Richard D. Tue . "Design of a TW-SLIM Module for Dual Polarity Confinement, Transport, and Reactions". United States. doi:10.1007/s13361-017-1680-5.
@article{osti_1368110,
title = {Design of a TW-SLIM Module for Dual Polarity Confinement, Transport, and Reactions},
author = {Garimella, Sandilya V. B. and Webb, Ian K. and Prabhakaran, Aneesh and Attah, Isaac K. and Ibrahim, Yehia M. and Smith, Richard D.},
abstractNote = {Here we describe instrumental approaches for performing dual polarity ion confinement, transport, ion mobility separations and reactions in Structures for Lossless Ion Manipulations (SLIM). Previous means of ion confinement in SLIM based upon rf- generated pseudopotentials and dc fields for lateral confinement cannot trap ions of opposite polarity simultaneously. Here we explore alternative approaches to provide lateral confinement of both ion polarities. Traveling wave ion mobility (IM) separations experienced by both polarities in such SLIM cause ions of both polarities migrate in the same directions and exhibit similar separations. The ion motion (and relative motion of the two polarities) under both surfing and IM separation conditions are discussed. Strategies to separate the two populations to minimize reactive losses during transport are presented. A theoretical treatment of the time scales over which two populations (injected into a dc field-free region of the dual polarity SLIM device) interact is considered, and SLIM designs for allowing ion/ion interactions and other manipulations with dual polarities at 4 torr are presented.},
doi = {10.1007/s13361-017-1680-5},
journal = {Journal of the American Society for Mass Spectrometry},
number = 7,
volume = 28,
place = {United States},
year = {Tue May 30 00:00:00 EDT 2017},
month = {Tue May 30 00:00:00 EDT 2017}
}