超灵敏跃迁法测定稀土钕(Ⅲ)——柠檬酸配合物的稳定常数  

Determination of stability constants of neodymium(Ⅲ) Citric acid complex by hypersensitive transition method

作　　者：张强[1] 刘利平[2] 陈雪松[3] 杨铁锐 

机构地区：[1]内蒙古师范大学化学系 [2]内蒙古医学院药学系 [3]内蒙古大学职业技术学院 [4]呼和浩特第一中学

出　　处：《内蒙古石油化工》2001年第4期41-43,共3页Inner Mongolia Petrochemical Industry

基　　金：内蒙古自然科学基金资助项目

摘　　要：测定了稀土钕 ( )——柠蒙酸配合物的稳定常数。利用稀土 f- f超灵敏跃迁吸收的振子强度与配体浓度的关系 ,获得自由配体浓度和相应生成函数的系列数值 ,从而由自编计算机程序拟合出配合物的稳定常数。本方法在稀土单核配合物稳定常数的测定上获得较为可靠的结果。The stability constants of Nd(Ⅲ)-citric acid complex were determinated. The stability constants of the Nd(Ⅲ)-citric acid complex were determined by the spectra of hypersensitive transition from the oscillator strength as a function of total ligand concentration. The stability constants were calculated using a fitting method of an appropriate computer program. This experiments is the best confirmation of the applicability of the spectroscopic method for the determination of stability constants. The result is reliable and good.

关 键 词：钕 柠檬酸 稳定常数 超灵敏跃迁 测定 稀土 配合物 配位平衡 

分 类 号：O641.4[理学—物理化学] O657.3[理学—化学]