摘要
通过模拟加氢精制催化剂组成制备一系列不同组分含量的标准样品,采用经验系数法校正基体效应,建立X射线荧光光谱法测定加氢精制催化剂中活性组分镍、钼、钨、磷含量的分析方法,测定范围(质量分数):NiO,1.92%~7.1%;MoO3,8.80%~13.69%;WO3,8.81%~14.50%;P2O5,2.04%~6.96%。建立的4条定量校准曲线的相关系数均高于0.999,测定结果相对标准偏差均小于1%,具有较高的准确度和精密度,能很好地满足科研和工业生产的需求。
A series of standard samples with different component contents were prepared by simulating the composition of hydrofining catalyst,and the matrix effect was corrected by empirical coefficient method.Then a method for the content determination of nickel,molybdenum,tungsten and phosphorus in hydrofining catalysts was established by X-ray fluorescence spectrometry.The determination range(mass fraction)is as follow:w(NiO)=1.92%~7.1%,w(MoO3)=8.80%~13.69%,w(WO3)=8.81%~14.50% and w(P2O5)=2.04%~6.96%.This method has high accuracy and precision that the correlation coefficients of the four quantitative calibration curves established by this method were all higher than 0.999 and the relative standard deviation of the determination result was less than 1%,which met the needs of scientific research and industrial production.
作者
韦悦文
张丹丹
齐邦峰
Wei Yuewen;Zhang Dandan;Qi Bangfeng(CNOOC Research Institute of Refining and Petrochemicals,Beijing 102209,China)
出处
《无机盐工业》
CAS
CSCD
北大核心
2020年第11期91-94,共4页
Inorganic Chemicals Industry
关键词
X射线荧光光谱法
加氢精制催化剂
镍
钼
钨
X-ray fluorescence spectrometry
hydrofining catalyst
nickel
molybdenum
tungsten
