摘要
采用电感耦合等离子体原子发射光谱法(ICP-AES)测定了高纯氧化钇铕中13种杂质稀土元素。取样品1.000 0 g溶于盐酸10 mL中,加水定容至100 mL,供ICP-AES分析,选定了所测定的13种杂质稀土元素的分析谱线。测定中所选用的仪器工作参数为:①冷却气流量12 L.min-1;②护套气流量0.20 L.min-1;③载气流量3.0 L.min-1;④高频发生器频率40.68 MHz,功率1.1 kW;⑤观测高度10～12 mm。用标准加入法对方法的回收率及精密度作了试验,所得回收率在78.5%～99.6%之间;测定值的相对标准偏差(n=11)在0.02%～0.94%之间。
Thirteen rare earth elements present as impurities in the high-purity yttrium（＋europium） oxide were determined directly by ICP-AES.One（1.000 0）g of the Y（Eu）2O3 sample was dissolved in 10 mL of conc.HCl and diluted quantitatively to 100 mL,which was used for ICP-AES analysis.Analytical spectral lines of the 13 RE elements were selected and the working parameters of the instrument were optimized and given as follows： ① flow-tate of cooling gas： 12 L·min-1;② flow-rate of sheathing gas： 0.20 L·min-1;③ flow-rate of carrier gas： 3.0 L·min-1;④ frequency of the RF high-frequency generator： 40.68 MHz,with power of 1.1 kW;and ⑤ height of observation： 10-12 mm.Recovery and precision of the method were tested by standard addition method with 11 determinations,giving values of recovery in the range of 78.5%-99.6%,and of RSD′s ranged from 0.02% to 0.94%.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2011年第2期213-215,共3页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
