论文部分内容阅读
Spectroscopic properties of Nd~(3+),Er~(3+)-glutamic acid,aspartic acid and asparagine systems are investi-gated at different pH values and different Ln~(3+):amino acid ratios.The existence of 1:1 and 1:2.75 speciesin solution of pH=1～5 is proved.The dependence of oscillator strength of “hypersensitive” transition andparameter T_2 on acidic-basic properties of the ligand and correlation between oscillator strength of“hypersensitive” transition and parameter T_2 are discussed.
Spectroscopic properties of Nd ~ (3 +), Er ~ (3 +) - glutamic acid, aspartic acid and asparagine systems are investi-gated at different pH values and different Ln ~ (3 +): amino acid ratios.The existence of 1 : 1 and 1: 2.75 speciesin solution of pH = 1 ~ 5 is proved. The dependence of oscillator strength of “hypersensitive” transition and parameter T_2 on acidic-basic properties of the ligand and correlation between oscillator strength of “hypersensitive” transition and parameter T_2 are discussed.