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前文已报导六价铀与三羟基戊二酸(以下简称ТГК)络合作用的情况,本文研究四价铀与ТГК的络合作用,实验方法及所用试剂、仪器等均具前文所述。初步试验曾测量了在440—750毫微米的波长范围内溶液的光密度。用蒸馏水作为比较溶液,液槽厚度为49.78毫米。由图1可以看出,过氯酸铀(Ⅳ)纯溶液的吸收光谱极大值位于波长430,496,550和648毫微米处。当溶液中存在ТГК时,所有的极大值位置几乎都向长波部分移动,分别为440,490,560和668毫微米,在这时光密度也起了剧烈的变化,特别是在波长668毫微米处,光密度增长很大。ТГК在测量的波长范围内不会吸收。
It has been reported previously that hexavalent uranium complexes with trihydroxy glutaric acid (hereinafter referred to as ТГК). In this paper, the complexation of tetravalent uranium with ТГК has been reported. The experimental methods, reagents, instruments and the like have been described above. The initial test has measured the optical density of the solution in the 440-750 nm wavelength range. With distilled water as a comparative solution, the bath thickness was 49.78 mm. As can be seen from Figure 1, the maximum absorption spectrum of uranium perchlorate (IV) solution lies at wavelengths of 430, 496, 550 and 648 nm. When ТГК was present in the solution, almost all of the maximum locations moved towards the longwave portions, 440, 490, 560 and 668 nm respectively, at which time the optical density also changed dramatically, especially at a wavelength of 668 nm, Great growth. ТГК will not absorb in the measured wavelength range.