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研究了稀土与漂兰6B-4,7-二苯基邻菲啰琳和溴化十六烷基三甲铵四元络合物形成的条件。测定了络合物的最大吸收波长、摩尔吸光系数、组成及稳定常数。利用溴化十六烷基三甲铵对不同稀土增退色作用的差异,拟定了测定镧中钐、铕、钆、铽含量的分光光度法。在竞争配位体碳酸氢钠存在下,拟定了测定镧中谱、钕含量的分光光度法。
The conditions for the formation of the quaternary complexes of rare earth with blue-based 6B-4,7-diphenylfluralin and cetyltrimethyl ammonium bromide were studied. The maximum absorption wavelength, molar absorptivity, composition and stability constant of the complex were determined. The use of cetyltrimethylammonium Bromide for different rare earth fading effect on the determination of the determination of lanthanum samarium, europium, gadolinium, terbium content spectrophotometry. In the presence of sodium bicarbonate, a competitive ligand, a spectrophotometric method was developed for the determination of lanthanide mid-spectrum and neodymium content.