X射线荧光光谱法测定石灰岩和白云岩中主次量组分  

Determination of Major and Minor Components in Limestone and Dolomite by X-ray Fluorescence Spectrometry

作　　者：赵亚男 王小强 余文丽 杜天军 杨惠玲 ZHAO Yanan;WANG Xiaoqiang;YU Wenli;DU Tianjun;YANG Huiling(General Institute for Nonferrous Metals and Geological Exploration of Henan Province,Zhengzhou,Henan 450052,China;Key Laboratory of Deep Ore-prospecting Technology Research of Nonferrous Metals of Henan Province,Zhengzhou,Henan 450052,China;Henan Provincial Nonferrous Metals Geological and Mineral Resources Bureau No.7 Geological Team,Zhengzhou,Henan 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：《中国无机分析化学》2021年第4期25-30,共6页Chinese Journal of Inorganic Analytical Chemistry

基　　金：河南省2016年度“两权价款”地质科研项目(2015199203)。

摘　　要：建立用X射线荧光光谱法同时测定石灰岩和白云岩中主次量组分(CaO、MgO、Al_(2)O_(3)、SiO_(2)、Fe_(2)O_(3)、TiO_(2)、K_(2)O、Na_(2)O、MnO、P_(2)O_(5))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。实验结果表明,各元素的检出限在80~280μg/g,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10%,相对标准偏差(RSD)不超过5%。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 simultaneously determine the contents of CaO,MgO,Al_(2)O_(3),SiO_(2),Fe_(2)O_(3),TiO_(2),K_(2)O,Na_(2)O,MnO and P2O5 in limestone and dolomite by XRF was developed.Under the selected experimental conditions,the content of different components was obtained from the curve by determining the fluorescence intensity using working curve plotted by national standard samples.The spectral line overlap interference and matrix effect were corrected by the integrated regression equation of calibration curve and matrix correction.The experimental results showed that the detection limits of each element ranged from 80μg/g to 280μg/g.The components in certified reference material and samples were determined by the proposed method.The results are in good agreement with the current standard values.The relative error(RE)was less than 10%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 石灰岩 白云岩 

分 类 号：O657.34[理学—分析化学] TH744.16[理学—化学]