X射线荧光光谱法测定金红石中主次组分  

Determination of Major and Minor Components in Rutile Ores by X-ray Fluorescence Spectrometry

作　　者：杨明坤[1] 

机构地区：[1]厦门出入境检验检疫局技术中心,福建厦门361026

出　　处：《中国无机分析化学》2015年第2期73-75,共3页Chinese Journal of Inorganic Analytical Chemistry

摘　　要：采用Li2B4O7和LiBO2的混合熔剂(67∶33)熔融制样,波长色散X射线荧光光谱法测定金红石中TiO2,TFe,P,SiO2,Al2O3,MnO,CaO,Cr2O3,MgO,ZrO2,HfO2等组分。实验中样品和熔剂的质量比为1∶14,以溴化锂(LiBr)作脱模剂,采用高频熔炉在1 150℃熔融90s进行制样,所得熔片均匀、强度高、成型良好。方法用于金红石实际样品的测定,结果同参考值或化学分析方法的结果相吻合,相对标准偏差(RSD,n=10)P为3.8%、Al2O3为2.8%,其它均小于2%,能够满足实际测定工作的需要。A-wavelength dispersion X-ray fluorescence spectrometry method for the determination of TiO2, Fe, P, SiO2, Al2 03, MnO, CaO, Cr2O3, MgO2 ZrO2 and HfO2 in rutile ores was established. The samples were fused by LizB4OT-LiBO2 （mass ratio of 67： 33） as mixture flux. The results showed that the optimized sample fusion conditions were as follows, sample-flux ratio （mass ratio） of 14： 1, LiBr solution as releasing agent, sample fusion temperature of 1 150 ℃, and sample fusion time of 90 s. Under the optimum experimented conditions, the glass fusion slice of sample was homogeneous, and it had high strength and good shape. The method was successfully applied to determine actual rutile ore samples, and the measured values were consistent with the referenced values or those obtained by chemical analysis methods. The relative standard deviation （RSD, n= 10） of the analytes were less than 3.8%.

关 键 词：X射线荧光光谱法 金红石 熔融制样 

分 类 号：O657.34[理学—分析化学] TH744.15[理学—化学]