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Gewählte Publikation:

Bohrn, R; Potthast, A; Schiehser, S; Rosenau, T; Sixta, H; Kosma, P.
(2006): The FDAM method: determination of carboxyl profiles in cellulosic materials by combining group-selective fluorescence labeling with GPC.
Biomacromolecules. 2006; 7(6):1743-1750 FullText FullText_BOKU

Abstract:
A novel method for accurate determination of the carboxyl content in cellulosic materials by fluorescence labeling with 9H-fluoren-2-yl-diazomethane (FDAM) has been developed. The procedure can readily be implemented into a GPC system with RI and MALLS detectors, requiring additional fluorescence detection. The labeling conditions were optimized by means of sugar acid model compounds and were transferred to the cellulose case. Kinetics of the labeling and the influence of reaction parameters were comprehensively studied. For the first time, carboxyl profiles of cellulosics, i.e., the carboxyl content relative to the molecular weight distribution, were obtained.
Autor/innen der BOKU Wien:
Kosma Paul
Potthast Antje
Rosenau Thomas
Schiehser Sonja
BOKU Gendermonitor:

Find related publications in this database (using NML MeSH Indexing)
Carboxylic Acids - chemistry
Cellulose - chemistry
Chromatography, Gel - methods
Diazomethane - analogs & derivatives
Fluorenes - chemistry
Fluorescent Dyes - chemistry
Kinetics - chemistry
Molecular Structure - chemistry
Molecular Weight - chemistry
Sensitivity and Specificity - chemistry
Spectrometry, Fluorescence - methods



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