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本文用光度法研究了Nd~(3+),Ho~(+3),Er~(3+)离子同PMDCP和DPG所形成的三元配合物的超灵敏跃迁现象;测定出三元配合物的组成比为Ln~(3+):PMDCP:DPG=1:4:1;实验了该体系在尤吸收最大时遵守比耳定律的浓度间隔,同时对一些干扰离子进行了实验.
In this paper, the super-sensitive transition of Nd ~ (3 +), Ho ~ (+3), Er ~ (3+) ions with PMDCP and DPG was studied by spectrophotometry. The ternary complex Ln ~ (3 +): PMDCP: DPG = 1: 4: 1. Experiments were carried out to observe the concentration interval of Beer’s law at the maximum absorption, and some interference ions were also tested.