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7th International Polysaccharide Conference of the European Polysaccharide Network of Excellence (EPNOE)- EPNOE2021

Strategies for characterization of minor compounds in cellulose by application of UPC2-ESI-qTof-MS

Submitted by : Potthast Antje
Abstract type : Poster
Session type : Characterisation of polysaccharides: problems and prospects
Author Speaker : Antje Potthast
Speaker's family name : Potthast
Speaker's given name (the firstname in full and other initials, if necessary) : Antje
Speaker's intitution or organization : BOKU Vienna
Speaker's email address : antje.potthast@boku.ac.at

Information about other authors (for each co-author, please list co-author's family name, given name, affiliation, city, country) :

Dev Sriranganadane1, Sebastian España Orozco2, Stefano Barbini1, Ilkka Kilpeläinen3, Alistair King3, Thomas Rosenau1 and Antje Potthast1

 

1University of Natural Resources and Life Sciences, Department of Chemistry, Institute of Chemistry of Renewables, Konrad Lorenz-Straße 24, 3430 Tulln an der Donau, Austria

2Department of Wood Chemistry & Biotechnology, Wood Kplus – Kompetenzzentrum Holz GmbH, Altenberger Straße 69, Linz, 4040, Austria

3University of Helsinki, Department of Chemistry, Synthesis and Analysis, Yliopistonkatu 3, 00014 Helsinki, Finland

Abstract (copy and paste only the text: no title, reference or illustration) :

It's the little things that matter - this also applies to cellulose products of various kinds. In addition to the main constituents in pulp, paper or cellulose fibers, tiny amounts of chromophores, extractives or residual chemicals can still influence the properties in an often non-negligible way. Therefore, analysis relies on methods capable of extracting and separating these compounds, followed by a strong characterization technique. We have investigated ESI-qTof MS (electron spray ionization quadrupole time of flight mass spectrometry) in combination with Ultra Performance Convergence Chromatography (UPC2) using supercritical carbon dioxide with an organic modifier as eluent. Chromatography allows the separation of different classes of compounds with short run times. In particular, but not exclusively, less polar compounds with higher molar masses can be easily separated. Several examples will be given, e.g. for the analysis of residual extractives in pulp samples after different pulp bleaching stages[1] or for the investigation of residual ionic liquids in cellulose fibers after regeneration.

Bibliographic references (numeroted list of references as follows : [1] Authors' list with family name and initials, Journal name, issue, pages, year) :

[1] España Orozco, S., Bischof, R.H., Barbini, S., Sriranganadane, D., Fackler, K., Potthast, A. The fate of lipophilic wood extractives in oxygen-based cellulose bleaching. ACS Sust. Chem. 2021, in press

Keywords (5-6 single words or short wordings separated by semicolons) : cellulose, analysis, extractives, ILI
Abstract file (Please follow the template format so that it can be included in the Book of Abstracts) : EPNOE abstract GRETE.docx 15.73 kB


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