稀土钕(Ⅲ)——甘氨酸配合物稳定常数的超灵敏跃迁法测定  

DETERMINATION OF STABILITY CONSTANTS OF NEODYMIUM(Ⅲ) AMINOACETIC ACID COMPLEX BY HYPERSENSITIVE TRANSITION METHOD

作　　者：张强[1] 刘利平[2] 陈雪松 

机构地区：[1]内蒙古师范大学化学系 [2]内蒙古医学院化学教研室 [3]呼和浩特交通学校基础课教研室

出　　处：《内蒙古石油化工》2000年第3期43-45,共3页Inner Mongolia Petrochemical Industry

摘　　要：本文研究测定稀土钕 ( )与甘氨酸配合物的稳定常数。采用稀土的 f-f超灵敏跃迁吸收法。其振子强度 Pexp与 Cx A 有较好的线性关系。经过计算机程序拟合处理得到与文献值比较一致的稳定常数值 。Objective: Determination of stability constants of Nd(Ⅲ)-aminoacetic acid complex. Methods:the stability constants of the Nd(Ⅲ)-aminoacetic acid complex were determined by the spetra 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. Results: Typical variations of the 'hypersensitive' band accompanying changing total ligand concentrations are illustrated in the absorption spectrum(Fig.). The data confirm the suitability of oscillator strength measurements for the determination of stability constants. Conclusion: This experiment are 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 甘氨酸 稳定常数 超灵敏跃迁 

分 类 号：O614[理学—无机化学]