ArticleAnalytical chemistry2024
Combining Liquid Chromatography and Cryogenic IR Spectroscopy in Real Time for the Analysis of Oligosaccharides.
Article in Analytical chemistry, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Action Spectroscopy of Mass-Selected Ions-From Principles to Applications.Journal of mass spectrometry : JMS · 2026Review
- Cryogenic Infrared Spectroscopy Unmasks Gas-Phase Charge Migration in Mucin-Type O-Glycans.Small (Weinheim an der Bergstrasse, Germany) · 2026Article
- Steroid Fingerprinting with Cryogenic Gas-Phase Infrared Spectroscopy.ACS measurement science au · 2026Article
- Cryogenic Gas-phase IR Spectroscopy on a Commercial Ion Mobility-Mass Spectrometry Platform.Analytical chemistry · 2026Article
- Integrating High-Resolution Cyclic Ion Mobility Separations with Tandem Mass Spectrometry and Collision Cross Section Measurements for Human Milk Oligosaccharide Sequencing.ACS measurement science au · 2025Article
- Development of a Robust Platform for Infrared Ion Spectroscopy: A New Addition to the Analytical Toolkit for Enhanced Metabolite Structure Elucidation.Analytical chemistry · 2025Article
- Sugar Analysis Using Hydrophilic Liquid Chromatography Combined with Raman Spectroscopy.Analytical chemistry · 2025Article
- Robust and High-Resolution All-Ion Fragmentation LC-ESI-IM-MS Analysis for In-Depth Characterization or Profiling of Up to 200 Human Milk Oligosaccharides.Analytical chemistry · 2025Article
- Analytical Strategies for Natural Mono- and Disaccharide Isomer Differentiation: Techniques and Applications.Drug design, development and therapy · 2025Review
- Recent advances in high-resolution traveling wave-based ion mobility separations coupled to mass spectrometry.Mass spectrometry reviewsReview
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Authors and funding
4 authors.
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Abstract
While the combination of liquid chromatography (LC) and mass spectrometry (MS) serves as a robust approach for oligosaccharide analysis, it has difficulty distinguishing the smallest differences between isomers. The integration of infrared (IR) spectroscopy within a mass spectrometer as an additional analytical dimension can effectively address this limitation by providing a molecular fingerprint that is unique to each isomer. However, the direct interfacing of LC-MS with IR spectroscopy presents a technical challenge arising from the mismatch in the operational time scale of each method. In previous studies, this temporal incompatibility was mitigated by employing strategies designed to slow down or broaden the LC elution peaks of interest, but this workaround is applicable only for a few species at a time, necessitating multiple LC runs for comprehensive analysis. In the current work, we directly couple LC with cryogenic IR spectroscopy by acquiring a spectrum in as little as 10 s. This allows us to generate an orthogonal data dimension for molecular identification in the same amount of time that it normally takes for LC analysis. We successfully demonstrate this approach on a commercially available human milk oligosaccharide product, acquiring spectral information on the eluting peaks in real time and using it to identify both the specified constituents and nonspecified product impurities.
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