熔融制样—X射线荧光光谱法测定小取样量地球化学样品中的主量元素

赵红坤, 郝亚波, 田有国, 高祥照, 刘亚轩

The application of melting sample preparation-X ray fluorescence spectrometry to measuring a small amount of soil certified reference material

Hong-Kun ZHAO, Ya-Bo HAO, You-Guo TIAN, Xiang-Zhao GAO, Ya-Xuan LIU

表5 方法精密度实验结果(n=12)

Table 5 The experimental results of methods precision

组分 GSD-25 GSD-26 平均值X 相对标准偏差RSD/% 平均值X 相对标准偏差RSD/% SiO2 68.53 0.6 63.04 0.2 Al2O3 12.59 0.7 14.15 0.4 TFe2O3 3.82 0.9 5.18 0.4 MgO 1.07 2.1 1.80 1.2 CaO 3.49 1.3 3.87 0.4 Na2O 2.05 2.4 0.78 3.9 K2O 3.12 0.7 3.03 0.4 Mn 858 2.5 543 3.8 P 408 5.3 514 2.8 Ti 2401 3.3 3818 2.1