Abstract：A capillary gas chromatographic method for the determination of anthracene and phenanthrene in crude anthracene was established with external standard for quantification and N,N-dimethylacetamide as solvent. It was determined through experiment that the programmed-temperature conditions of chromatographic column were: to start at the initial temperature of 120 ℃ and keep for 4 min; to rise the temperature to 180 ℃ at 40 ℃/min and keep for 5 min; to rise the temperature to 200 ℃ at 40 ℃/min and keep for 5 min. The content of anthracene and phenanthrene was determined by the proposed method. Anthracene and phenanthrene showed a good linear relationship within 10-100 mg/L. The detection limit of anthracene and phenanthrene were 2.12×10-2 mg/L and 1.76×10-2 mg/L. The proposed method has been applied to determine anthracene and phenanthrene in three crude anthracene samples, and the relative standard deviation(RSD, n=8) was 0.59%-1.3%. Six crude anthracene samples were determined by proposed method, the results of phenanthrene were consistent with those of ultraviolet spectrophotmetry and the results of anthracene were consistent with those of chemical titration.
王俊广,刘翠霞,谢广粤,等.毛细管气相色谱法测定煤焦油粗蒽中蒽的含量[J]. 武汉科技大学学报(Journal of Wuhan University of Science and Technology),2006,29(6):567-568.
[3]
魏林,金鸣林,吴三林,等.气相色谱法同时测定蒽油中蒽、萘的含量[J]. 华东冶金学院学报(Journal of East China Institute of Metallurgy),1999,16(4):323-327.
[4]
Machado Maria Elisabete, Caramo Elina Bastos , Zini Cláudia Alcaraz. Investigation of sulphur-compounds in coal tar using monodimensional and comprehensive two-dimensional gas chromatography[J]. Journal of Chromatography A, 2010(21):3200-3207.
[5]
Zhang M J,Li S D ,Chen B J. Compositional studies of high-temperature coal tar by GC-FT-IR analysis of light oil fractions[J]. Chromatographia,1992,33(3-4):138-146.
