宁夏工程技术2023，Vol.22Issue(4)：366-370,5.
粉末压片-X射线荧光光谱法测定煤矸石中主量元素
Determination of Major Elements in Coal Gangue by Powder Compaction-X-ray Fluorescence Spectrometry
摘要
Abstract
The chemical composition of coal gangue determines the direction of its utilization and the rate of comprehensive utilization.However,traditional methods for testing coal gangue are cumbersome and prone to significant human error.In order to rapidly and accurately determine the major elements in coal gangue,the powder pellet pressing method was used for sample preparation.Calibration sample series were selected from kaolin and clay standard samples with the same granularity,similar matrix,and gradient of mass fractions of each component as the samples to be tested.The mass fractions of SiO2,Al2O3,Fe2O3,CaO,MgO,TiO2,K2O,Na2O,P2O5,and MnO in the calibration sample series were determined using X-ray fluorescence spectroscopy(XRF).Calibration curves were drawn based on the mass fractions and the corresponding X-ray fluorescence intensity,and these curves were used to calculate the mass fractions of each component in the samples to be tested.The granularity and pressure of powder pellet pressing were optimized through experimentation,and the empirical coefficient method was used to correct for spectral line overlap interference and matrix effects.The precision and accuracy of the coal gangue samples were tested using this detection method,and the results showed that both the precision and accuracy meet the requirements of the industry standard The Specification of Testing Quality Management for Geological Laboratories(DZ/T 0130-2006).关键词
煤矸石/粉末压片/X射线荧光光谱法/主量元素Key words
coal gangue/powder tableting/X-ray fluorescence spectrometry/major elements分类
化学化工引用本文复制引用
马彦斌,杨凡燕,董爱俊,刘颖,王鸿,马程,唐文涛..粉末压片-X射线荧光光谱法测定煤矸石中主量元素[J].宁夏工程技术,2023,22(4):366-370,5.基金项目
宁夏回族自治区基础地质调查院(宁夏回族自治区地质矿产中心实验室)自筹资金项目 （宁夏回族自治区地质矿产中心实验室）
