The determination of glucosamine and galactosamine

Abstract
A modification of the method described by Elson and Morgan (1933) for the determination of amino sugars is given. The "best" range, the accuracy and the reproducibility of the determination are illustrated by results obtained by the use of authentic amino sugar samples, and the limitations of procedure, imposed by the instability of the chromophore produced, are given. Factors of importance in the application of the method to naturally occurring substances are discussed.