蒙脱石中各物相的定量分析研究  

Study on Quantitative Phase Analysis in Montmorillonite

作　　者：陈红 施颖 廉向金 黎萍 杨华承 杨梅 CHEN Hong;SHI Ying;LIAN Xiang-jin;LI Ping;YANG Hua-cheng;YANG Mei(Chengdu Institute Drug Control,Sichuan Chengdu 610045;Weiao Pharmaceutical(Sichuan)Co.Ltd.,Sichuan Chengdu 611930,China)

机构地区：[1]成都市药品检验研究院,四川成都610045 [2]四川维奥制药有限公司,四川成都611930

出　　处：《广州化工》2022年第12期99-102,共4页GuangZhou Chemical Industry

基　　金：四川省科技计划项目(No:2020YFS0475)。

摘　　要：将Ufer理论纳入蒙脱石的多相Rietveld定量分析中,采用X射线粉末衍射法(XRD)测定蒙脱石中各物相的含量,并以方英石、石英为例验证方法的准确性,建立蒙脱石中各物相的定量测定方法。结果表明:采用对照品加入法,方英石、石英分别在0.1%~10%、0.4%~10.4%范围内,加入量与计算值呈良好线性关系(r>0.999),该法的重复性、准确度良好,该方法可用于蒙脱石中各物相的定量分析。The Ufer theory was incorporated into the multiphase Rietveld quantitative analysis of montmorillonite.The content of each phase in montmorillonite was determined by X-ray powder diffraction(XRD).The accuracy of the method was verified by taking cristobalite and quartz as examples,and the quantitative determination method of each phase in montmorillonite was established.The results showed that the addition amount of calcite and quartz had a good linear relationship with the calculated value(r>0.999)in the range of 0.1%~10%and 0.4%~10.4%respectively by using the reference substance addition method.The repeatability and accuracy of this method were good.This method can be used for the quantitative analysis of various phases in montmorillonite.

关 键 词：蒙脱石 Rietveld多相定量分析方法 方英石 石英 含量测定 

分 类 号：R917[医药卫生—药物分析学]