熔融玻璃片法X射线荧光光谱测定铁矿石中的主次量组分

摘要

采用四硼酸锂和偏硼酸锂混合熔剂（质量比为67∶33）为助熔剂制备玻璃片，建立了X射线荧光光谱法测定铁矿石中 Fe2O3、SiO2、Al2O3、CaO、MgO、P、Ti、K2O、Mn等组分含量的方法。以12个铁矿石的标准物质建立校准曲线，研究了溶剂、稀释比例、脱模剂以及温度和时间的影响，用理论α系数法进行回归校正。方法准确、快速、简便。%The preparation of sheet glass were carried out by fusion method , other experimental conditions were confirmed as follow :Li2 B4 O7 -LiBO2 ( mass ratio was 67∶ 33) as compound fusing agent ,A method was introduced for determination of components concentration including Fe2 O3 ,SiO2 ,Al2 O3 ,CaO ,MgO ,P , Ti ,K2 O ,M n in iron ore by X -ray fluorescence spectrometry ,In the standard substances of 12 iron ore as calibration sample , the calibration curve of iron ore , effects of solvent , dilution radio , temperature and time of release agent are studied . By using the theoretical alpha coefficient method for regression calibra-tion is carried out . T he method is accurate , fast , simple .