CIQ Jiangsu Metal Material Testing Laboratory (Changshu), Jiangsu Province 215500, China.
Appl Spectrosc. 2010 May;64(5):543-6. doi: 10.1366/000370210791211727.
Inductively coupled plasma optical emission spectrometry (ICP-OES) was applied to the determination of trace rare-earth elements in clean steel. The steel sample was dissolved with a mixture of hydrochloric acid (HCl), nitric acid (HNO(3)), and hydrogen peroxide (H(2)O(2)), with the solution passing through a column packed with the anion-exchange resin DOWEX 1 x 8-200. Iron was absorbed selectively on the resin column, and the analytes of interest passed through the column and were effectively separated from the iron matrix. Conditions of separation were optimized. When the sample solution was spiked with 10 microg of the analytes of interest, the recoveries ranged from 88% to 102%, and relative standard deviations were between 6% and 21% (n = 6). The method was successfully applied to the determination of trace amounts of targeted elements in clean steel.
电感耦合等离子体发射光谱法（ICP-OES）被应用于测定纯净钢中的痕量稀土元素。钢样用盐酸（HCl）、硝酸（HNO(3)）和过氧化氢（H(2)O(2)）的混合溶液溶解，溶液通过填充阴离子交换树脂 DOWEX 1 x 8-200 的柱子。铁被选择性地吸附在树脂柱上，而感兴趣的分析物通过柱子，并从铁基质中有效分离。分离条件进行了优化。当用 10μg 的感兴趣的分析物对样品溶液进行加标时，回收率在 88%到 102%之间，相对标准偏差在 6%到 21%之间（n=6）。该方法成功地应用于测定纯净钢中痕量目标元素。
