Journal article
Ion mobility-mass spectrometry analysis of isomeric carbohydrate precursor ions
Analytical and bioanalytical chemistry, Vol.394(7), pp.1853-1867
08/2009
Handle:
https://hdl.handle.net/2376/106678
PMID: 19562326
Abstract
The rapid separation of isomeric precursor ions of oligosaccharides prior to their analysis by mass spectrometry to the nth power (MS(n)) was demonstrated using an ambient pressure ion mobility spectrometer (IMS) interfaced with a quadrupole ion trap. Separations were not limited to specific types of isomers; representative isomers differing solely in the stereochemistry of sugars, in their anomeric configurations, and in their overall branching patterns and linkage positions could be resolved in the millisecond time frame. Physical separation of precursor ions permitted independent mass spectra of individual oligosaccharide isomers to be acquired to at least MS(3), the number of stages of dissociation limited only practically by the abundance of specific product ions. IMS-MS(n) analysis was particularly valuable in the evaluation of isomeric oligosaccharides that yielded identical sets of product ions in tandem mass spectrometry experiments, revealing pairs of isomers that would otherwise not be known to be present in a mixture if evaluated solely by MS dissociation methods alone. A practical example of IMS-MS(n) analysis of a set of isomers included within a single high-performance liquid chromatography fraction of oligosaccharides released from bovine submaxillary mucin is described.
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Details
- Title
- Ion mobility-mass spectrometry analysis of isomeric carbohydrate precursor ions
- Creators
- Maolei Zhu - Department of Chemistry, Washington State University, Pullman, WA 99163, USABrad BendiakBrian ClowersHerbert H Hill, Jr
- Publication Details
- Analytical and bioanalytical chemistry, Vol.394(7), pp.1853-1867
- Academic Unit
- Chemistry, Department of
- Publisher
- Germany
- Grant note
- R33 RR020046-04 / NCRR NIH HHS R33 RR020046-05 / NCRR NIH HHS R33 RR020046-03 / NCRR NIH HHS 5R21RR02004602 / NCRR NIH HHS
- Identifiers
- 99900546844901842
- Language
- English
- Resource Type
- Journal article