Direct Spectrophotometric Determination of Levulinic Acid in Aminosan-eki (Soybean-hydrolyzate)

Abstract

ment of absorbance at 242mμ on the reaction product of levulinic acid with hydrazine monohydrochloride was applied to rapid determination of levulinic acid content in Aminosan-eki. The effect of other components in Aminosan-eki on the result was negligible and the accuracy of the method was satisfactory.