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Gewählte Publikation:

Schedl, A; Zweclunair, T; Kikul, F; Bacher, M; Rosenau, T; Potthast, A.
(2018): Pushing the limits: Quantification of chromophores in real-world paper samples by GC-ECD and EI-GC-MS
TALANTA. 2018; 179: 693-699. FullText FullText_BOKU

Widening the methodology of chromophore analysis in pulp and paper science, a sensitive gas-chromatographic approach with electron-capture detection is presented and applied to model samples and real-world historic paper material. Trifluoroacetic anhydride was used for derivatization of the chromophore target compounds. The derivative formation was confirmed by NMR and accurate mass analysis. The method successfully detects and quantifies hydroxyquinones which are key chromophores in cellulosic matrices. The analytical figures of merit appeared to be in an acceptable range with an LOD down to approx. 60 ng/g for each key chromophore, which allows for their successful detection in historic sample material.
Autor/innen der BOKU Wien:
Bacher Markus
Kikul Frauke
Potthast Antje
Rosenau Thomas
Schedl Andreas
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