快速液相萃取法测定油品中溶解氧含量  

DETERMINATION OF DISSOLVED OXYGEN CONTENT IN OIL PRODUCTS BY RAPID LIQUID PHASE EXTRACTION METHOD

作　　者：杨孟智 史军歌 韩熹微 蔺玉贵 Yang Mengzhi;Shi Junge;Han Xiwei;Lin Yugui(SINOPEC Research Institute of Petroleum Processing Co.,Ltd.,Beijing 100083)

机构地区：[1]中石化石油化工科学研究院有限公司,北京100083

出　　处：《石油炼制与化工》2024年第6期160-163,共4页Petroleum Processing and Petrochemicals

摘　　要：溶解氧会对原油、燃料、化工原料等油品的使用性质或加工性能产生不良影响,而现行检测方法存在操作繁琐、适应性差或数据精密度不佳等问题。为了弥补现行方法的不足,应用液相快速萃取法,以氧传感器为检测器对油品中溶解氧含量进行测定。研究结果表明,该方法测定时间在3 min以内,加标回收率为94%~104%,5次平行测定的平均标准偏差小于3%,检出限小于1.5 mg/L。Dissolved oxygen has adverse effects on the properties or processing performance of oil products like crude oil,fuels and industrial chemicals.However,current detection methods have problems such as cumbersome operation,poor adaptability or poor data precision.To solve these problems,liquid phase rapid extraction method was applied to determine the dissolved oxygen in oil products using oxygen sensor as detector.The results indicated that the determination time was less than 3 min,the recovery rate of oxygen was between 94%and 104%,the mean standard deviation for five parallel determinations was less than 3%and the detection limit was less than 1.5 mg/L.

关 键 词：溶解氧 快速液相萃取法 油品 

分 类 号：TE626[石油与天然气工程—油气加工工程] O658.2[理学—分析化学]