芳烃中微量环丁砜的测定  

Determination of Trace Amounts of Sulfolane in Aromatic Hydrocarbons

作　　者：胡学斌 吕正忠 董永花 常素萍 朱静 HU Xuebin;LV Zhengzhong;DONG Yonghua;CHANG Suping;ZHU Jing(Ningxia Coal-to-oil Chemical Quality Inspection and Measurement Center,National Energy Group,Yinchuan 750411,China)

机构地区：[1]国家能源集团宁夏煤业煤制油化工质检计量中心,宁夏银川750411

出　　处：《化工技术与开发》2024年第10期54-58,共5页Technology & Development of Chemical Industry

摘　　要：本文通过改变样品的进样方式,解决了因预处理过程复杂而导致的芳烃中环丁砜含量的测定精密度差、准确度低的问题,建立了芳烃抽提萃取液(烃)中微量环丁砜(C_(4)H_(8)O_(2)S)的气相色谱分析方法。方法的测定下限为0.92 mg·kg^(-1),相对标准偏差小于6.0%,加标回收率在95.50%~99.37%之间。By changing the injection method of the sample,the problem of poor precision and low accuracy in the determination of sulfolane content in hydrocarbons caused by complex pre-treatment processes was solved.A determination method of trace sulfolane(C_(4)H_(8)O_(2)S)in aromatic hydrocarbon extraction liquids(hydrocarbons)was established.The determination lower limit of the method was 0.92 mg/kg,relative standard deviation was less than 6.0%,the spiked recovery rates was between 95.50%~99.37%.

关 键 词：芳烃抽提 环丁砜 FID 气相色谱 

分 类 号：O657.71[理学—分析化学]