气相色谱测定煤焦油中萘和甲基萘的含量  

Determination of Naphthalene and Methylnaphthalene in Coal Tar by Gas Chromatography

作　　者：闫建康 YAN Jiankang(National Center of Supervision and Inspection for Coal and Coal Chemical Product Quality, Taiyuan 030012, China)

机构地区：[1]国家煤及煤化工产品质量监督检验中心

出　　处：《化工技术与开发》2019年第6期44-45,共2页Technology & Development of Chemical Industry

摘　　要：本文建立了蒸馏色谱法定量测定煤焦油中的萘、α-甲基萘和β-甲基萘的检测方法。以乙醇为溶剂,正十二烷为内标物,用内标法对萘、α-甲基萘和β-甲基萘的含量进行测定。结果表明,煤焦油中的各组分能很好地分离,样品的回收率为96.1%~103.4%。A distillation chromatography method for the determination of naphthalene,α-methylnaphthalene and β-methylnaphthalene in coal tar was established. Applied toluene as a solvent, normal dodecane as internal standard compound, the internal standard method was adopted to determine the content of naphthalene,α-methylnaphthalene and β-methylnaphthalenel in coal tar. The results showed that the composition in coal tar could be well separated and fourteen compounds had been identified. The recovery rate was 96.1%~103.4%.

关 键 词：气相色谱 煤焦油 萘 Α-甲基萘 Β-甲基萘 

分 类 号：O657.71[理学—分析化学]