原子吸收光谱法测定镝铁合金中Ca、Mg、Ni、Cr、Mn、Cu的含量

Determination of Ca,Mg,Ni,Cr,Mn and Cu in Dysprosium-iron Alloy by AAS

研究了原子吸收光谱法测定镝铁合金中Ca、Mg、Ni、Cr、Mn、Cu的新方法,研究了酸介质、样品基体、共存元素的干扰,确定了实验的最佳测定条件。在优化的实验条件下,测得方法的回收率在98%-115%之间、RSD〈5%,方法检出限分别为钙≤0.03μg/mL;镁≤0.005μg/mL;镍≤0.02μg/mL;铬≤0.02μg/mL;锰≤0.02μg/mL;铜≤0.02μg/mL。

Determination of Ca, Mg, Ni, Cr, Mn, Cu in dysprositan - iron was studied by AAS. The optimization experimental condition was determined by study of the different acids media, the matrix effect and the interference of coexistence dements. In the optimization experimental condition , the recoveries of this method were in the range of 98 % - 115 % and the precision detection was below 5%.