Ultra-high-performance liquid chromatography charge transfer dissociation mass spectrometry (UHPLC-CTD-MS) as a tool for analyzing the structural heterogeneity in carrageenan oligosaccharides

Autor: Glen P. Jackson, Praneeth M Mendis, Hélène Rogniaux, Zachary J. Sasiene, David Ropartz
Přispěvatelé: West Virginia University [Morgantown], Unité de recherche sur les Biopolymères, Interactions Assemblages (BIA), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), INRA Plateforme BIBS, Unité de Recherche Biopolymères, Interactions, Assemblages, Department of Forensic and Investigative Science [Morgantown], the National Science Foundation (NSF) (CHE-1710376) and the National Institute of Health (NIH) : 1R01GM114494-01.
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Analytical and Bioanalytical Chemistry
Analytical and Bioanalytical Chemistry, Springer Verlag, 2021, pp.Early access. ⟨10.1007/s00216-021-03396-3⟩
ISSN: 1618-2642
1618-2650
Popis: International audience; Ultra-high-performance liquid chromatography (UHPLC) with charge transfer dissociation mass spectrometry (CTD-MS) ispresented for the analysis of a mixture of complex sulfated oligosaccharides. The mixture contained kappa (κ), iota (ι), andlambda (λ) carrageenans that contain anhydro bridges, different degrees of sulfation ranging from one to three per dimer,different positioning of the sulfate groups along the backbone, and varying degrees of polymerization (DP) between 4 and 12.Optimization studies using standard mixtures of carrageenans helped establish the optimal conditions for online UHPLC-CTDMS/MS analysis. Optimization included (1) UHPLC conditions; (2) ion source conditions, such as the capillary voltage, dryinggas and nebulizing gas temperature, and flow rate; and (3) CTD-MS conditions, including data-dependent CTD-MS. TheUHPLC-CTD results were contrasted with UHPLC-CID results of the same mixture on the same instrument. Whereas CIDtends to produce B/Y and C/Z ions with many neutral losses, CTD produced more abundant A/X ions and less abundant neutrallosses, which enabled more confident structural detail. The results demonstrate that He-CTD is compatible with the timescale ofUHPLC and provides more structural information about carrageenans compared to state-of-the-art methods like UHPLC-CIDanalysis
Databáze: OpenAIRE