【摘要】 本文研究了十一种元素对石墨炉原子吸收测定钪时产生的干扰,发现在10%HCl溶液中La、V、Mn、Ca、Zn有正干扰,Ti、Fe有负干扰。提出了铜铁试剂-氯仿萃取分离的方法,其方法简便有效。测得上海某钛白粉厂含钪废液的结果与 ICP-AES法一致。回收率在90～106%,检出限为73pg。更多还原

【Abstract】 The interference of 11 co-existing elements on the GFAAS determination of scandium hasbeen studied in this work. It is found that in a 10% HCl solution, La, V, Mn, Ca and Zn give positive errorwhile Fe and Ti give negative error. To separate traces of scandium from large amounts of Fe and/or Ti, asimple solvent extraction procedure is established which gives a recovery between 90～106%. The proposed,method has been applied to the determination of scandium in waste water from a titan white plant. Theresult obtained conforms very well with that by ICP-AES method.更多还原