Towards Resolving the Spatial Metabolome with Unambiguous Molecular Annotations in Complex Biological Systems by Coupling Mass Spectrometry Imaging with Structures for Lossless Ion Manipulations
- Biological Sciences Division, Pacific Northwest National Laboratory; Richland; USA
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory; Richland; USA
- Biosciences Division; Oak Ridge National Laboratory; Oak Ridge; USA
We demonstrate the coupling of liquid extraction surface analysis (LESA) to structures for lossless ion manipulations in conjunction with serpentine ultralong path with extending routing (SLIM SUPER) ion mobility-mass spectrometry (IM-MS) for the unambiguous annotation of important isomeric glycoforms in carbon-fixing communities. A major bottleneck of current mass spectrometry imaging (MSI) methods is their inability to accurately and confidently delineate amongst isomers within a single probing area. Our methodology provides gains in both sensitivity and IM resolution, while simultaneously gaining insight on the spatial distribution of these biological isomers in a mixed organism composed of moss, cyanobacteria and fungus. We envision this methodology will be broadly applicable to other mass spectrometry imaging modalities and invaluable in multiplexed, untargeted, analyses of a single probing location.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1496826
- Report Number(s):
- PNNL-SA-138045
- Journal Information:
- ChemComm, Journal Name: ChemComm Journal Issue: 3 Vol. 55; ISSN CHCOFS; ISSN 1359-7345
- Publisher:
- Royal Society of Chemistry
- Country of Publication:
- United States
- Language:
- English
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