X射线荧光光谱法测定铁矿石中主次量组分  

Determination of Major and Minor Components in Iron Ore by X-ray Fluorescence Spectrometry

作　　者：赵亚男 王小强 余文丽 杜天军 杨惠玲 ZHAO Ya-nan;WANG Xiao-qiang;YU Wen-li;DU Tian-jun;YANG Hui-ling(General Institute for Non-ferrous Metals and Geological Exploration of Henan Province,Zhengzhou 450052,China;Key Laboratory of Deep Ore-prospecting Technology Research of Non-ferrous Metals of Henan Province,Zhengzhou 450052,China;Henan Provincial Nonferrous Metals Geological and Mineral Resources Bureau No.7 Geological Team,Zhengzhou 450018,China)

机构地区：[1]河南省有色金属地质勘查总院,郑州450052 [2]河南省有色金属深部找矿勘查技术研究重点实验室,郑州450052 [3]河南有色金属地质矿产局第七地质大队,郑州450018

出　　处：《当代化工》2021年第10期2517-2520,共4页Contemporary Chemical Industry

基　　金：河南省2016年度“两权价款”地质科研项目,电感耦合等离子体分析技术在典型多金属矿分析中的应用研究(项目编号:2015199203)。

摘　　要：建立用X-射线荧光光谱法同时测定铁矿石中主次量组分(TFe、SiO_(2)、Al_(2)O_(3)、MgO、CaO、Na_(2)O、K_(2)O、TiO_(2)、MnO、P)的快速分析方法,在优化条件下,采用国家标准样品建立的标准工作曲线和基体校准一体回归方程进行谱线重叠干扰和基体效应校正,对国家标准物质及样品进行重复测定,分析结果与标准值吻合,相对误差RE不超过5%,相对标准偏差RSD不超过5%。该方法具有较好的准确度和精密度,能满足快速分析的需要。A rapid analytical method to determine the contents of TFe,SiO_(2),Al_(2)O_(3),MgO,CaO,Na_(2)O,K_(2)O,TiO_(2),MnO,P in iron ore was developed by XRF.Under the selected experimental conditions,mass fractions of different components were obtained from the curve by determining the fluorescence intensity using working curve plotted by national standard samples.The spectal line overlap interference and matrix effect were corrected by the integrated regression equation of calibration curve and matrix correction.The components in certified reference material and samples were determined by the proposed method.The results were in good agreement with the current standard values.The relative error(RE) was less than 5%,and the relative standard deviation(RSD,n=12) was less than 5%.The method has good accuracy and precision,and can meet the need of fast analysis.

关 键 词：X-射线荧光光谱法 主次量组分 铁矿石 

分 类 号：O657.34[理学—分析化学]