钪 钇茜素红S异多核络合物极谱吸附波的研究  

Polarographic Adsorptive Wave of Scandium Yttrium Alizarin Red S Mix Polynuclear Complex

作　　者：黎拒难[1] 赵先菊[1] 苏生跃 

机构地区：[1]湘潭大学化学化工学院,湘潭411105

出　　处：《中国稀土学报》1999年第3期271-274,共4页Journal of the Chinese Society of Rare Earths

摘　　要：报道了钪钇茜素红Ｓ异多核络合物的形成及该异多核络合物极谱吸附波测定钪的最佳实验条件。用此方法测定了纯氧化钇中的微量钪， 并探讨了该极谱波的性质和电极反应机制。在单扫描示波极谱上用单纯形法和改良的平衡移动法测得该异多核络合物组成的摩尔比为： ｘＳｃ３＋ ∶ｘＹ３＋ ∶ｘＡＲＳ＝１∶２∶５ 。The formation of scandium yttrium alizarin red S mix polynuclear complex was investigated. The optimum conditions of the determination of Sc 3+ by use of the polarographic adsorptive wave of the mix polynuclear complex were reported. A new method was established for the direct determination of trace amount Sc in pure Yttria. Furthermore, the polarographic behaviour and the electrode reaction mechanism was studied. The molar ratio of each component in the complex was estimated as x Sc 3+ ∶ x Y 3+ ∶ x ARS =1∶2∶5.

关 键 词：稀土 钪 钇 茜素红S 异多核络合物 极谱吸附波 

分 类 号：O641.4[理学—物理化学] O657.14[理学—化学]