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High chemical resolution lipid imaging mass spectrometry using gas-phase ion/ion reactions
Speaker:
Boone Prentice, PhD
University of Florida

Imaging mass spectrometry is a powerful technology that enables the visualization of biochemical processes directly in tissues by combining the molecular specificity of mass spectrometry with the spatial fidelity of microscopic imaging. Especially when studying lipids, there are many isobaric and isomeric molecules that complicate spectral analysis, with each isoform having a potentially unique cellular function. While traditional tandem mass spectrometry (MS/MS) approaches can distinguish amongst these compounds in select instances, this is often not the case. Our group is developing gas-phase reactions that afford the ability to provide improved molecular specificity without manipulating the sample. These gas-phase transformations are fast, efficient, and specific, making them ideally suited for implementation into imaging mass spectrometry workflows to enable novel structural identification and separation based on chemical reactivity. While traditional analytical analyses oftentimes simply use the mass spectrometer as a detector of molecular mass, we instead use the mass spectrometer as a reaction vessel to perform unique gas-phase transformations to provide unparalleled levels of chemical resolution.

Sep 28, 2021 10:00 AM in Pacific Time (US and Canada)

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