紫外荧光法分析工业芳烃中痕量硫  

Analysis of trace sulfur in aromatic hydrocarbon by ultraviolet fluorescence

作　　者：许竞早[1] 王川[1] 彭振磊[1] 张育红[1] 

机构地区：[1]中国石化上海石油化工研究院,上海201208

出　　处：《石油化工》2017年第11期1419-1423,共5页Petrochemical Technology

摘　　要：利用紫外荧光法建立了工业芳烃中痕量硫的分析方法,优化了仪器的操作条件,考察了该方法的精密度、准确度和检测限。实验结果表明,采用该方法在硫化物质量为2.0×10^(-9)~5.0×10^(-8)g时硫含量与峰面积呈现较好的线性关系,其线性相关系数为0.998 8,方法的加标回收率为94.55%~116.67%,测定结果的相对标准偏差为2.09%~9.32%,最低检测限为0.018mg/kg。该方法快速、准确,可应用于工业芳烃中痕量硫的测定,满足生产企业对芳烃产品中硫含量更严格的控制需求。A ultraviolet fluorescence method for the analysis of trace sulfur in aromatic hydrocarbon was established. The method was applicable to industrial aromatic content of sulfur. In order to ensure the accurate detection of trace sulfur, the operation conditions of the instrument were optimized and a series of control measures were established. The sulfide had a good linear relationship with its mass 2.0 × 10-9-5.0 × 10-8 g, the correlation coefficient was 0.998 8. The recoveries of the sulfur content in aromatic hydrocarbon were 94.55%-116.67%, the relative standard deviations were 2.09%-9.23%. The limits of detection were 0.018 mg/kg. This method can applied to the determination of trace sulfur in aromatic hydrocarbon.

关 键 词：紫外荧光法 痕量硫 芳烃 分析 

分 类 号：TE628[石油与天然气工程—油气加工工程]