Studies on the Coordination of Pr(Ⅲ) with Adrenaline by Potentiometry and Absorption Spectroscopy  

作　　者：Feng GAO Jing Fen HAN Zhi Jian WU Yue WANG Kui Yue YANG Chun Ji NIU Jia Zuan NI (Laboratory of Rare Earth Chemistry and Physics. Changchun Institute of Applied Chemistry. Chinese Academy of Sciences, Changchun 130022) 

出　　处：《Chinese Chemical Letters》1999年第8期677-678,共2页中国化学快报（英文版）

摘　　要：The stability constant for complex of Pr(Ⅲ) with adrenaline has been determined by potentiometric titration under biological conditions (37℃ and 0.15mol/L NaCl). The absorption spectra of the Pr(Ⅲ)-adrenaline system exhibit characteristic bands of Pr(Ⅲ) at lower pH values. However, the charge transfer band which is due to the coordination of Pr(Ⅲ) with adrenaline has been observed at higher pH values.The stability constant for complex of Pr(Ⅲ) with adrenaline has been determined by potentiometric titration under biological conditions (37℃ and 0.15mol/L NaCl). The absorption spectra of the Pr(Ⅲ)-adrenaline system exhibit characteristic bands of Pr(Ⅲ) at lower pH values. However, the charge transfer band which is due to the coordination of Pr(Ⅲ) with adrenaline has been observed at higher pH values.

关 键 词：PRASEODYMIUM ADRENALINE POTENTIOMETRY SPECTROSCOPY 

分 类 号：O657.3[理学—分析化学]