抄録
As was reported in the previous paper, when α-tocopherol was treated with alkaline manganese dioxide, it forms a substance having strong fluorescence by excitation with 365 mμ Hg ray, accompanied by many byproducts with faint fluorescence. In the present paper, fluorescent, properties were investigated on a mixture of synthesized trimethylhydroquinone isoprene derivatives. It was observed that this material contains dominantly a fluorescent substance closely related to the substance described above, and can be used as the standard for the fluorometric determination of tocopherols.
