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Abstract
The alkaline ferricyanide and the Park-Johnson's methods were studied in order to determine glucose oligomers separated by liquid chromatography in nanomole quantities. In the alkaline ferricyanide method, high sensitivity was obtained by measuring ultraviolet absorbance of the reduced reagents. The presence of some kinds of salts or alcohols did not affect the colour development of the reagents. The applicability of the present measuring system to an automatic sugar analyzer has been demonstrated by examining several glucose oligomers.