康普顿散射强度法测定加氢催化剂中的镍含量  

A method to determine nickel content of Mo-Ni / Al_2O_3 hydrogenation catalyst based on Compton scattering intensity

作　　者：余颖龙[1] 曹青[1] 安谧[1] 付凯妹[1] 任静[1] 韩旭 

机构地区：[1]中国石油天然气股份有限公司石油化工研究院,北京102206 [2]北京市水科学技术研究院,北京100048

出　　处：《分析试验室》2015年第12期1423-1427,共5页Chinese Journal of Analysis Laboratory

摘　　要：建立了以康普顿散射强度测定Mo-Ni/Al_2O_3加氢催化剂多元粉末体系中NiO含量的方法。从康普顿散射与电子密度关系的理论出发,推导出无限厚度粉末体系中组分浓度与康普顿散射强度之间的关系式;针对实验现象提出如下解释:在特定条件下,多元体系的康普顿散射与体系中某个组分的浓度成近似线性关系,依此可建立测定该组分的测试方法。A method to determ,nate nickel content of Mo-Ni/A1203 hydrogenation catalyst was developed. This determination was built on the relation between Compton scattering intensity and nickel content. Compton scattering intensity depends on the electron density of samples which are determined by the yields and mole electron concentrations of components ; therefore, the relation between Compton scattering intensity and substance contents was established. Usually, the content cannot be determined when the samples were composed of more than two components. In this study, Compton Scattering intensity is linear to nickel contents due to some reasons and it is possible to measure the nickel contents.

关 键 词：康普顿散射 加氢催化剂 镍含量 

分 类 号：O657.3[理学—分析化学]