抄録
A modification of the resorcinol-thiourea-hydrochloric acid method of Roe et al.7) for the determination of fructose is described. The modification is based on the observation that by lowering the incubation temperature to 70°C, a greater color intensity ratio (fructose color/glucose color) is obtained, thus increasing the specificity of the method for fructose. By applying the principle of the two-point determination of Mokrasch12) to the modified procedure, fructose in the presence of 100-fold excess of glucose can be determined with an error of about 10%.
