溶液中镨的荧光特性

FLUORIMTRIC PROPERTY OF PRASEODYMIUM IN SOLUTION

研究了酸溶液中Pr^(3+)的荧光特性,结果表明:在217nm光照射下,除了HNO_3以外,H_2SO_4、HCl、HCLO_4H_3PO_4介质中的Pr^(3+)在230—290nm范围内均产生宽的荧光谱带,并在240和275nm处有两个发射峰。研究了酸介质、酸度、有机溶剂、Pr^(3+)^+浓度对荧光强度的影响。

The fluorimetric properly of Pr^(3+) in acid solution has been studied, It was found that Pl^(3+) in H_2SO_4, HCl, HClO_4, H_3PO_4 except HNO_3 always show band fluorescence spectrum in the range of 230—290 nm with two emission peaks at 240 and 275 nm when they are irradiated at 217 nm, The influences of acid medium, acidity, organic solvent and concentration of Pr^(3+) on fluorescent intensity have also been investigated.