摘要
α型Y-CPA-PN配合物向β型配合物转化的反应对α型Yb-CPA-PN向β型转化的反应具有诱导作用。利用这一诱导反应可用来测定混合稀土中的钇。在初步研究反应机理的基础上,茯得了不同反应时期反应速率与钇浓度的定量关系,并确定了最佳反应条件。通过求算协同诱导系数、解联立方程的办法可扣除共存轻稀土的干扰。方法可能用于含钇和轻稀土样品中氧化钇的测定。
The transformation of α-type Y-CPA-pN into β-type can induce the transformation of α-type Yb-CPA-pN into β-type. An attempt has been made to determinate yttrium in mixed rare earth oxide by kinetic spectrophotometry based on this induction reaction. When the reaction mechanism investigated, both optimum reaction conditions and linear relationships between the reaction rate at different time and Y_2O_3 concentration have been obtained. The interference from light rare earth elements is eliminated by solving a group of eguations and calculating synergistic induction cofficient. The suggested method is possibly applied to determin ating yttria in synthetic samples containing yttrium and light rare earth elements.
出处
《中国稀土学报》
CAS
CSCD
北大核心
1989年第2期79-83,共5页
Journal of the Chinese Society of Rare Earths
基金
国家自然科学基金
