芳烃分析中色谱定量方法的研究  

Quantitative Analysis of Aromatics by Gas Chromatography

作　　者：张育红[1] 王川[1] 李薇[1] 

机构地区：[1]上海石油化工研究院,上海201208

出　　处：《广州化工》2009年第1期100-102,共3页GuangZhou Chemical Industry

摘　　要：采用气相色谱-归一化法,以对二甲苯、混合二甲苯和甲苯为例,建立了一种快速、准确测定芳烃纯度和杂质含量的分析方法。结果表明,标样回收率在98%～104%之间,相对标准偏差<3%。为进一步简化操作过程,定量分析所用的各组分的相对质量校正因子也可以通过有效碳数(ECN)计算得到。本方法可用于对二甲苯、混合二甲苯和甲苯及其它芳烃类产品的分析,在芳烃生产企业具有较好的应用前景。A method was developed for the determination of purity of aromatics （such as para-Xylene and toluene） and hydrocarbon impurities by gas chromatography and normalization. The results indicated that the recovery was in the range of 98 %-104 % and the RSD was less than 3 %. The relative response factor for each component can also be calculated from the effective carbon number （ECN）in order to simply the testing process. As a rapid and accurate method, it was applied successfiully to the analysis of para-Xylene as well as some other aromatics, such as mixed-Xylene and toluene, and it would have a promising prospect for application in aromatic fields.

关 键 词：对二甲苯 芳烃 气相色谱 归一化法 

分 类 号：TQ241.13[化学工程—有机化工] O657.71[理学—分析化学]