Title
Characterization of hardwood-derived carboxymethylcellulose by high-pH anion-exchange chromatography using pulsed amperometric detection
Authors
P. Damlin J.-P. Mikkola and T. Salmi

Received November 16, 2009
Published Volume 44 Issue 1-3 January-March
Keywords carboxymethyl cellulose, high-pH anion-exchange chromatography, substituent distribution

Abstract
An approach for the quantitative analysis of substituent distribution in carboxymethylcellulose (CMC) is presented. In short, the high-pH anion-exchange chromatography method, coupled to pulsed amperometric detection (PAD), is introduced. Each of the seven derivatives in CMC is presented by a single peak on the PAD trace, thus enabling an easy quantification. New inside information on monomer composition is obtained by this novel method, which is essential for understanding the structure versus property relationships in the CMC samples.