カルバゾール中の微量アントラセンのけい光光度定量法

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o, Chikusa-ku, Naffoya-shi. Aichi) In the commercial material of carbazole containing 2,3-benzocarbazole as impurity, the fluorescence of anthracene could not be directly measured because of the interference of the impurity. Therefore, a chromatographic method of separation was studied for the fluorometry of anthracene in carbazole. Anthracene was separated from carbazole and 2,3-benzo-carbazole on an alumina column(6φ×50 mm) by the elution with monochlorobenzene. Two milliliters of the sample solution dissolved in monochlorobenzene (500 μg/ml) was added to the column, and then development was carried on with monochlorobenzene. Anthracene was passed through the column without adsorption and could be quantitatively recovered within 10 ml of the effluent. Anthracene could be determined by measuring the fluorescence intensity at 404 nm with excitation at 379 nm against 0.25 μg/ml anthracene solution as a reference. By this method, anthracene in carbazole could be determined down to 0.005%.
社団法人日本分析化学会の論文
1976-07-10