熔融制样-X射线荧光光谱法测定矿石中的锡

Determination of tin in ore by melting sample preparation and X-ray fluorescence spectrometry

通过人工配制和化学分析方法定值作为标准样品,扩大了锡元素标准曲线的测量范围。采用理论a系数和经验系数法校正基体干扰,锡的测定范围0.01%~5.00%,相对标准偏差(RSD)为0.850%~1.471%。本方法的测定结果与碘酸钾容量法测定结果基本一致,能满足矿石中低品位锡元素的检测。

The measurement range of tin standard curve is expanded through manual preparation and chemical analysis.The matrix interference is corrected by theoretical a coefficient and empirical coefficient method.The determination range of tin is 0.01%~5.00%,and the relative standard deviation(RSD)is 0.850%~1.471%.