X-射线衍射-全谱拟合相定量分析法测定精细型蒙脱石及其晶体杂质含量  

Determination of contents for refined montmorillonite and its crystalline impurities by X-ray diffraction with whole pattern fitting phase quantitative analysis method

作　　者：孟智超 杜亚明 Meng Zhichao;Du Yaming(LANScientific Co.,Ltd.,Suzhou 215151,China)

机构地区：[1]苏州浪声科学仪器有限公司,苏州215151

出　　处：《分析仪器》2024年第6期24-26,共3页Analytical Instrumentation

摘　　要：相定性结果:主相蒙脱石(Montmorillonite-15A)、次要相石英(Quartz),其他晶体杂质未检出;全谱拟合相定量分析法进行定量,相定量结果:主相蒙脱石99.3%(质量分数)、次要相石英0.7%(质量分数);精细型蒙脱石纯度测定的重复性为平均值的±1%,实验数据精密、准确,能够满足其产品质量控制的工艺技术要求。该方法可在精细型蒙脱石生产及其他相关行业推广应用。Phase identification results were the main phase was montmorillonite(Montmorillonite-15A),with quartz as the minor phase;no other crystalline impurities were detected.By using the whole pattern fitting phase quantitative analysis method,the phase quantitative detection results were as follows:the main phase montmorillonite was 99.3%(mass fraction)and the minor phase quartz was 0.7%(mass fraction).The repeatability of purity determination of refined montmorillonite was within±1%of the average value,demonstrating precise and accurate data that met the process technical requirements for product quality control.This method can be promoted and applied in the production of refined montmorillonite and other related industries.

关 键 词：晶体杂质 精细型蒙脱石 次要相 主相 相定性 相定量 X-射线衍射 

分 类 号：P575[天文地球—矿物学] O655[天文地球—地质学]