高灵敏度X射线荧光光谱仪对汽油中硅含量的快速测定  

FAST DETERMINATION OF SILICON CONTENT IN GASOLINE BY HF-XRF

作　　者：章然 吴梅[1] 王杰明 刘明星[1] Zhang Ran;Wu Mei;Wang Jieming;Liu Mingxing(SINOPEC Research Institute of Petroleum Processing,Beijing 100083)

机构地区：[1]中国石化石油化工科学研究院,北京100083

出　　处：《石油炼制与化工》2020年第3期89-93,共5页Petroleum Processing and Petrochemicals

摘　　要：建立利用高灵敏度能量色散X射线荧光光谱仪快速测定轻质燃油中硅含量的方法,并进行准确性和重复性考察。结果表明:该测定方法在硅质量分数为0~100μg/g范围内的定量标准曲线具有良好的线性关系,R2大于0.9999;方法检出限为1μg/g,样品回收率为95.7%~103.0%,相对标准偏差小于5.79%,可用于汽油中硅含量的测定。A method for fast determination of silicon content in gasoline by HF-XRF was developed.The precision of this method was inspected.The results showed that the linear correlation coefficient was more than 0.9999 when the mass fraction of the silicon was 0—100μg/g.The detection limit was 1μg/g for silicon,the standard addition recovery was in the range of 95.7%—103.0%,and the relative standard deviation was less than 5.79%.The results showed that this method is suitable for determination of silicon in gasoline.

关 键 词：能量色散 X射线荧光光谱 汽油 硅 

分 类 号：R28[医药卫生—中药学]