【摘要】 研究了在P₅₀₇-HCl-（NH₄）₂SO₄体系中用萃取色层法定量分离钕、钐、铕、钆、铽和镝的条件,实验表明当用0.42mol/L HCl-0.5mol/L（NH₄）₂SO₄作淋洗剂时,上述元素都能定量分离。方法能用于钐、铕、钆富集物中钐、铕、钆和铽的测定。更多还原

【Abstract】 The conditions for quantitative separation of Nd-Sm-Eu-Gd-Tb--Dy have been studied by using extraction-chromatographic technique in P₅₀₇-HCl--（NH₄）₂SO₄ system. The experiments show that the elements can be separated quantitatively by Using 0.42mol/L HCl-0.5mol/L （NH₄）₂SO₄ as eluant. This method can be applied to determine Sm, Eu, Gd and Tb in the Sm-Eu-Gd concentrate.更多还原