X射线荧光光谱法测定铁矿中铁等多种元素
Determination of Multi-elements in Iron Ores by X-ray Fluorescence Spectrometry
-
摘要: 采用熔融片制样,加入钴元素(Co Kα)作铁的内标,用x射线荧光光谱法测定铁等多种元素.用多种类型铁矿标准样品作为校准,理论α系数内标法及康普敦散射作内标校正基体效应.方法的最大绝对误差AE(TFe)≤0.23%.满足了ISO 9507对TFe分析结果准确度的要求AE(TFe)≤0.3%.Abstract: A method for the determination of multielements in iron ores by X-ay fluorescence spectrometry with fusion bead sample preparation method was developed. Co (Co Kα) was selected as internal standard for Fe determination and multikinds of standard reference iron ores were used for calibration. The matrix effect was corrected by using the theoretical alpha coefficient method with Compton scattered radiation as internal standard. The maximum absolute analytical error for TFe by this method was ≤0.23%， which meets the accuracy requirement in ISO 9507 \AE(TFe)≤0.30%\.
下载: