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Determination of carboxymethyl‐ D ‐glucoses in the product of hydrolytic depolymerization of carboxymethylcellulose by isotachophoresis
Author(s) -
Pospíšílik Karel
Publication year - 1989
Publication title -
electrophoresis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.666
H-Index - 158
eISSN - 1522-2683
pISSN - 0173-0835
DOI - 10.1002/elps.1150100106
Subject(s) - carboxymethyl cellulose , depolymerization , hydrolysis , chemistry , sodium carboxymethylcellulose , chromatography , isotachophoresis , reactivity (psychology) , polymer chemistry , organic chemistry , sodium , electrolyte , medicine , alternative medicine , electrode , pathology
Optimal conditions for isotachophoretic separation of carboxymethyl‐ D ‐glucoses formed by acidic depolymerization of carboxymethylcellulose were found. 6‐ O ‐car‐boxymethyl‐ D ‐glucose, 2‐ O ‐carboxymethyl‐ D ‐glucose and 3‐ O ‐carboxymethyl‐ D ‐glucose were identified and determined in the reaction mixture after carboxy‐methylcellulose hydrolysis. Relative reactivity of hydroxy groups in the glucopyranose unit of cellulose decreased in the following order: O (6)H> O (2)H> > O (3)H. This was found to be in agreement with the data published by other authors.