燃料与化工 ›› 2020, Vol. 51 ›› Issue (5): 40-42.

• 煤气净化与化学产品加工 • 上一篇    下一篇

GC-FID技术在煤焦油芳烃类化合物分析研究中的应用

闫建康   

  • 出版日期:2020-09-23 发布日期:2020-10-15

Application of GC-FID in analysis for aromatic compounds in coal tar

Yan Jiankang   

  • Online:2020-09-23 Published:2020-10-15

摘要:

采用气相色谱测定法,应用DB-5毛细管柱,以N,N-二甲基甲酰胺为溶剂,正十二烷为内标物,用内标法对苯、萘、α-甲基萘和β-甲基萘的含量进行测定。结果表明,煤焦油中各组分能很好地分离,实验结果有良好的准确度和精密度,样品回收率在95.5%~103.3%,相对标准偏差为1.72%~7.75%。

关键词: 气相色谱, 苯, 萘, α-甲基萘, β-甲基萘

Abstract: Internal standard method is developed for the determination of the content of benzene,naphthalene,α-methylnaphthalene and β-methylnaphthalene in coal tar by using gas chromato-graphy,which employs a DB-5 capillary column and with DMF used as the solvent,and n-dodecane as internal standard.The results show that every composition in coal tar could be well separated.The experimental results are accurate and precise.The recovery rates are 95.5%~103.3%,and the relative standard deviations are between 1.72%~7.75%.

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