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Title: Orthogonal Injection Ion Funnel Interface Providing Enhanced Performance for Selected Reaction Monitoring-Triple Quadrupole Mass Spectrometry

Journal Article · · Analytical Chemistry
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  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Biological Sciences Division

The electrodynamic ion funnel facilitates efficient focusing and transfer of charged particles in the higher pressure regions (e.g. ion source interfaces) of mass spectrometers, and thus providing increased sensitivity. An “off-axis” ion funnel design has been developed to reduce the source contamination and interferences from, e.g. ESI droplet residue and other poorly focused neutral or charged particles with very high mass-to charge ratios. In this study a dual ion funnel interface consisting of an orthogonal higher pressure electrodynamic ion funnel (HPIF) and an ion funnel trap combined with a triple quadruple mass spectrometer was developed and characterized. An orthogonal ion injection inlet and a repeller plate electrode was used to direct ions to an ion funnel HPIF at 9-10 Torr pressure. Several critical factors for the HPIF were characterized, including the effects of RF amplitude, DC gradient and operating pressure. Compared to the triple quadrupole standard interface more than 4-fold improvement in the limit of detection for the direct quantitative MS analysis of low abundance peptides was observed. Lastly, the sensitivity enhancement in liquid chromatography selected reaction monitoring (SRM) analyses of low abundance peptides spiked into a highly complex mixture was also compared with that obtained using a both commercial s-lens interface and a in-line dual ion funnel interface.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States). Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC05-76RLO01830; GM103493-12; 1R33CA155252
OSTI ID:
1203857
Report Number(s):
PNNL-SA-109430; 48135; KP1601010
Journal Information:
Analytical Chemistry, Vol. 87, Issue 14; ISSN 0003-2700
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 13 works
Citation information provided by
Web of Science

References (18)

A new technique for decomposition of selected ions in molecule ion reactor coupled with ortho-time-of-flight mass spectrometry journal October 1997
The ion funnel: Theory, implementations, and applications journal April 2009
Mass spectrometry with ion sources operating at atmospheric pressure journal January 1991
Improving mass spectrometer sensitivity using a high-pressure electrodynamic ion funnel interface journal September 2006
Chemically Etched Open Tubular and Monolithic Emitters for Nanoelectrospray Ionization Mass Spectrometry journal November 2006
Independent Control of Ion Transmission in a Jet Disrupter Dual-Channel Ion Funnel Electrospray Ionization MS Interface journal September 2002
A new type of GC–MS with advanced capabilities journal March 2006
Ion Funnel Trap Interface for Orthogonal Time-of-Flight Mass Spectrometry journal October 2007
From Ions In Solution To Ions In The Gas Phase journal November 1993
Pulsed Multiple Reaction Monitoring Approach to Enhancing Sensitivity of a Tandem Quadrupole Mass Spectrometer journal March 2011
A novel ion funnel for focusing ions at elevated pressure using electrospray ionization mass spectrometry journal October 1997
Achieving 50% Ionization Efficiency in Subambient Pressure Ionization with Nanoelectrospray journal November 2010
A Multicapillary Inlet Jet Disruption Electrodynamic Ion Funnel Interface for Improved Sensitivity Using Atmospheric Pressure Ion Sources journal September 2001
On the Ionization and Ion Transmission Efficiencies of Different ESI-MS Interfaces journal September 2014
Improved Ion Transmission from Atmospheric Pressure to High Vacuum Using a Multicapillary Inlet and Electrodynamic Ion Funnel Interface journal October 2000
Skyline: an open source document editor for creating and analyzing targeted proteomics experiments journal February 2010
Inhomogeneous RF Fields: A Versatile Tool for the Study of Processes with Slow Ions book January 1992
Erratum journal February 2011

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