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...
出处
《煤化工》
CAS
2008年第4期53-55,共3页
Coal Chemical Industry
关键词
煤焦油
萘
毛细管气相色谱
内标法
coal tar
naphthalene
capillary gas chromatography
internal standard method
