论文部分内容阅读
对几种吡啶 2 ,6 二甲酸类配体与EDTA、铽的三元配合物在溶液中的荧光性能进行了研究 ,溶液pH值和溶剂效应对体系荧光的影响也分别进行了探讨。 4 甲氧基吡啶 2 ,6 二甲酸 (MDPA)和 4 乙氧基吡啶 2 ,6 二甲酸 (EDPA)等配体在这种三元体系中的敏化性能比常用的吡啶 2 ,6 二甲酸 (DPA)好 ,其中 4 乙酰氨基吡啶 2 ,6 二甲酸 (ADPA)特别优异。不论在二元配合物体系还是在三元配合物体系中 ,均具有发光强度大、寿命长的特点。
Fluorescence properties of ternary complexes of pyridinium 2,6 dicarboxylate ligands with EDTA and terbium in solution were studied. The effects of solution pH and solvent on the fluorescence of the system were also discussed respectively. The sensitivities of 4-methoxypyridine2,6-dicarboxylic acid (MDPA) and 4-ethoxypyridine2,6-dicarboxylic acid (EDPA) ligands in this ternary system are better than those of the conventional pyridine 2,6 (DPA), of which 4 acetamidopyridine 2, 6 dicarboxylic acid (ADPA) is particularly excellent. Both in the binary complex system or in the ternary complex system, all have the luminous intensity, long life characteristics.