Carbohydrate Structure Characterization by Tandem Ion Mobility Mass Spectrometry (IMMS)2
- 20 February 2013
- journal article
- research article
- Published by American Chemical Society (ACS) in Analytical Chemistry
- Vol. 85 (5), 2760-2769
- https://doi.org/10.1021/ac303273z
Abstract
A high resolution ion mobility spectrometer was interfaced to a Synapt G2 high definition mass spectrometer (HDMS) to produce IMMS–IMMS analysis. The hybrid instrument contained an electrospray ionization source, two ion gates, an ambient pressure linear ion mobility drift tube, a quadrupole mass filter, a traveling wave ion mobility spectrometer (TWIMS), and a time-of-flight mass spectrometer. The dual gate drift tube ion mobility spectrometer (DTIMS) could be used to acquire traditional IMS spectra but also could selectively transfer specific mobility selected precursor ions to the Synapt G2 HDMS for mass filtration (quadrupole). The mobility and mass selected ions could then be introduced into a collision cell for fragmentation followed by mobility separation of the fragment ions with the traveling wave ion mobility spectrometer. These mobility separated fragment ions are finally mass analyzed using a time-of-flight mass spectrometer. This results in an IMMS–IMMS analysis and provides a method to evaluate the isomeric heterogeneity of precursor ions by both DTIMS and TWIMS to acquire a mobility-selected and mass-filtered fragmentation pattern and to additionally obtain traveling wave ion mobility spectra of the corresponding product ions. This new IMMS2 instrument enables the structural diversity of carbohydrates to be studied in greater detail. The physical separation of isomeric oligosaccharide mixtures was achieved by both DTIMS and TWIMS, with DTIMS demonstrating higher resolving power (70–80) than TWIMS (30–40). Mobility selected MS/MS spectra were obtained, and TWIMS evaluation of product ions showed that isomeric forms of fragment ions existed for identical m/z values.Keywords
This publication has 70 references indexed in Scilit:
- Identity confirmation of drugs and explosives in ion mobility spectrometry using a secondary drift gasTalanta, 2007
- Secondary Electrospray Ionization-Ion Mobility Spectrometry for Explosive Vapor DetectionAnalytical Chemistry, 2004
- Electrospray ionization with ambient pressure ion mobility separation and mass analysis by orthogonal time-of-flight mass spectrometryRapid Communications in Mass Spectrometry, 2001
- Detection of volatile vapors emitted from explosives with a handheld ion mobility spectrometerField Analytical Chemistry & Technology, 2001
- Detection of Trace Explosive Evidence by Ion Mobility SpectrometryJournal of Forensic Sciences, 1993
- Ionization of nitrotoluene compounds in negative ion plasma chromatographyAnalytical Chemistry, 1978
- Mass identified mobility spectra of p-nitrophenol and reactant ions in plasma chromatographyAnalytical Chemistry, 1976
- Identification of positive reactant ions observed for nitrogen carrier gas in plasma chromatograph mobility studiesAnalytical Chemistry, 1975
- Ion mass assignments based on mobility measuremets. Validity of plasma chromatographic mass mobility correlationsAnalytical Chemistry, 1973
- Plasma Chromatography --A New Dimension for Gas Chromatography and Mass SpectrometryJournal of Chromatographic Science, 1970