ICP-AES法测定FeSiB非晶合金炉渣中Al_2O_3、B_2O_3、CaO、MgO、MnO、SiO_2和TiO_2

Determination of Al_2O_3,B_2O_3,CaO,MgO,MnO,SiO_2 and TiO_2 in slagof FeSiB amorphous alloybyICP-AES

建立了电感耦合等离子体原子发射光谱法同时测定FeSiB非晶合金炉渣中Al2O3、B2O3、CaO、MgO、MnO、SiO2和TiO2的方法。用HNO3＋HCl＋HF处理样品,选择仪器的最佳分析参数和分析条件,采用基体匹配的方法消除基体干扰。该方法Al、B、Ca、Mg、Mn、Si和Ti的检出限分别为0.041、0.054、0.016、0.009、0.004、0.098、0.01μg/mL。用该方法对FeSiB非晶合金炉渣分析样品进行了测定,其测定结果（n=11）的相对标准偏差均小于2%,加标回收率为100.1%~105.8%。

A method for the determination of Al2O3、B2O3、CaO、MgO、MnO、SiO2and TiO2 in slag of FeSiB amorphous alloy by ICP-AES was proposed.The sample was completely decomposed with nitric acid,hydrochloric acid and hydrofluoric acid.The optimum analytical parament and condition were selected.The interference effects of matrix could be eliminated by the method of matrix matching.In this method,the limits of detection of Al,B,Ca,Mg,Mn,Si and Ti were 0.041,0.054,0.016,0.009,0.004,0.098 and 0.01μg/mL,respectively.Under the analytical optimum condition,chemical components in slag sample of FeSiB amorphous alloy were determined.The values of RSDs（n=11）were all less than 2.0% and the recoveries of added standard were between 100.1%~105.8%.