Abstract
The fluorescence produced by 5-hydroxy-1-tetralone and hexose in sulfuric acid had the maximum intensity at 532 mμ. The fluorescence intensity of glucose obeyed the Beer's law in a concentration of 1∼40 γ/cc. of the sugar and a standard procedure of the estimation was established. The other hexoses and oligosaccharides which contained hexose units in their molecule gave individual intensities. This method was not interfered by pentoses.
