毛细管气相色谱法测定煤焦油萘含量  

Determination of Naphthalene Content in Coal Tar by Capillary Gas Chromatography

作　　者：刘翠霞[1] 曹素梅[1] 王俊广[2] 徐明万[1] 王兰[1] 王洪槐[1] 谢广粤[1] 

机构地区：[1]武汉钢铁集团公司焦化公司,武汉430082 [2]武汉科技大学,武汉430081

出　　处：《煤化工》2008年第4期53-55,共3页Coal Chemical Industry

摘　　要：介绍了测定煤焦油萘含量的毛细管色谱测定方法,采用DB-5毛细管柱(30m×0.32mm×0.25μm),氢火焰离子化检测器(FID),程序升温。以N,N-二甲基乙酰胺为溶剂,正十二烷为内标物,对煤焦油萘的含量进行了测定,所测定的结果具有良好的准确度和精密度,样品的回收率为99.12%～104.18%。整个试样分析时间不超过25min,可直接用于产品质量分析与控制,为工厂进行现场分析和操作调节提供了简捷理想的方法。A method was established for the determination of naphthalene content in the coal tar by capillary gas chromatography. The DB-5 capillary column (30m×0.32mm×0.25μm) and the hydrogen flame ionization detector (FID) were used to realize programmed temperature rise at a rate of 40℃/min. The internal standard method was adopted to determine the naphthalene content in the coal tar, using chlorobenzene as a solvent and normal dodecane as internal standard. The results showed that the primary components in coal ta...

关 键 词：煤焦油 萘 毛细管气相色谱 内标法 

分 类 号：TQ522[化学工程—煤化学工程]