X射线荧光光谱法测定生铁中10种元素
Yejin Fenxi/Metallurgical Analysis(2011)
Abstract
采用波长色散X射线荧光光谱仪测定生铁中碳、硅、锰、磷、硫、钛、钒、铬、镍、铜等10个元素的含量.选择晶格面间距宽的晶体,其X射线荧光信号明显增强.试验了试样白口化对测量结果的影响,发现试样表面白口化与否和白口化的程度明显影响碳、硅、磷、硫等元素的测量结果,但对锰的影响很小.方法的检出限为1.2~114 μg/g.精密度试验结果表明,难于同时分析的碳、硅、锰、磷、硫的相对标准偏差(RSD,n=11)分别为0.57%、1.3%、0.53%、0.98%、1.2%.方法用于生铁样品中10种元素的分析,测量结果与其他方法的分析结果相符.
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Key words
cast iron,elements,x-ray
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