X射线荧光光谱法测定铁矿石中全铁及18个次量成分  

Determination of total iron and eighteen minor components in iron ore by X-ray fluorescence spectrometry

作　　者：廖海平[1] 付冉冉[1] 任春生[1] 余清[1] 张爱珍[1] 

机构地区：[1]北仑出入境检验检疫局,浙江宁波315800

出　　处：《冶金分析》2011年第5期36-40,共5页Metallurgical Analysis

摘　　要：采用X射线荧光光谱法测定铁矿石中主量成分(TFe)及18个次量成分(P、SiO2、Al2O3、CaO、MgO、Mn、TiO2、V2O5、K2O、S、Cr2O3、Ni、Co、Zn、Pb、Cu、Na2O、As)。以固定理论α影响系数法校正基体效应,使各成分的适用检测范围都得到较大拓宽;采用熔融方法制样,消除了试样的粒度效应和矿物效应。为了避免S的损失,样品经预氧化后灼烧,由软件计算或准确测定样品的烧失量。精密度试验表明,各成分的标准偏差(SD)为0.001%～0.268%。方法用于铁矿石实际样品分析,结果与其他方法结果相吻合。The contents of total iron（TFe） and eighteen minor components including P,SiO2,Al2O3,CaO,MgO,Mn,TiO2,V2O5,K2O,S,Cr2O3,Ni,Co,Zn,Pb,Cu,Na2O and As were determined by X-ray spectrometry.The matrix effect was corrected by fixed theoretica1 α influence coefficient method.Consequently,the measuring ranges of components were broadened obviously.The preparation of sample by fusion eliminated the granularity and mineral effects of sample.The loss of S was avoided by the ignition of sample after pre-oxidation.The loss on ignition of sample was calculated using software or determined accurately.The precision test showed that the standard deviations（SDs） were 0.001 %-0.268 %.The proposed method was applied to the analysis of actual iron ore sample,and the results were consistent with those obtained by other methods.

关 键 词：铁矿石 X射线荧光光谱法 全铁 次量成分 

分 类 号：O657.34[理学—分析化学]