カルパゾール中の微量アントラセラン紫外吸光光度定量法

概要

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In the commercial material of carbazole containg 2,3-benzocarbazole as impurity, the absorption of anthracene could not immediatey be measured for the interference of the impurity. Therefore, a method for the separation of anthracene by chromatographic technique was studied. The separation of anthracene from large amounts of carbazole and 2,3-benzocarbazole was carried out by using a 6φ×100 mm column packed with alumina. About 50mg of the sample is dissolved in 10ml of o-dichorobenzene. The sample solution is passed through the column, then the column is washed with 1O ml of o-dichlorobenzene. About 99% of anthracene in carbazole can be recovered by this process. The effuent is diluted to 25ml. Anthracene is determined by the difference between the absorbance at 380 nm and that of 390 nm. By this method, anthracene in carbazole can be determined down to 0,005%.
社団法人日本分析化学会の論文
1975-08-10