【摘要】 本文采用2-乙基己基膦酸单(2-乙基己基)酯(P-507)树脂,使微量稀土元素与钢中的基体元素,铁、钛、钒和钼分离,以 3.0 mol/L盐酸溶液洗脱P-507色层柱上的稀土元素,采用电感耦合等离子体原子光谱法(ICP-AES)同时测定了钢中La、Ce、Pr、Nd、Sm、Y和 Gd 7种微量稀土元素.试样的标准加入回收率99.3％～108％;相对标准偏差小于5％.更多还原

【Abstract】 A column chromatographic method with p-507 resin is proposed for the separation of rare earth elements from the matrix elements Fe, Ti, Mo, etc. in steel. Rare earth elements were desoluted from P-507 resin column with 3. 0 mol/L HC1 solution, then determined by inductively coupled plasma atomic emission spectrometry.更多还原