X射线荧光光谱熔融法测定锶永磁铁氧体中各组分含量

Analyses of elemental compositions of strontium-permanent magnetic ferrite by X-ray fluorescence spectrometry using a fusion method for sample preparation

本文使用自制标准样品,采用混合熔剂熔融样品,用X射线荧光光谱法(XRF)测定锶永磁铁氧体半成品中Fe、Sr、Si等元素的含量。熔融制样有效地消除了矿物效应,并降低了基体效应的影响。实验结果表明,本法准确度高,重现性好,平行测定11次相对标准偏差(RSD)可达到0.1%。该方法用于实际样品分析,其结果与传统化学分析方法结果相符。

This study demonstrated a novel analytical approach to determine concentration of Fe, Sr and Si elements in semi-finished products of permanent magnetic ferrite by X ray fluorescence measurement. Samples were melted with bead and mixed melting reagents. Self-made synthetic standards were used for quantification analysis. Our results indicated that the minimum relative standard deviation of O. 1% could be achieved for the eleven parallel measurements, indicating high accuracy and good reproducibility for the analytical approach we developed and demonstrated in this study. It concluded that when analyzing real samples by XRF, the results were consistent with that of traditional chemical analysis methods.