中文摘要：

合成了三水对苯二酚镧（Ⅲ）,用乙二胺四乙酸（EDTA）滴定法测定镧的质量分数,通过元素分析、红外光谱、X射线粉末衍射、荧光光谱等方法表征配合物。结果表明：配合物属于单斜晶系,晶胞参数a=3.598 nm,b=12.910 nm,c=4.343 nm,β=124.406°,V=166.441 nm^3;对苯二酚镧配合物的荧光光谱中出现了2个激发峰,分别位于224和290 nm处,发射峰只有1个,出现在328 nm处。

英文摘要：

Hydroquinone lanthanum （Ⅲ） complex was synthesized, and the mass fraction of lanthanum was determined by using ethylenediamine tetraacetic acid （EDTA） titration, and the complex was characterized by elemental analysis, infrared spectrum, X-ray powder diffraction, and fluorescence spectrum. The results showed that the complex belonged to monoclinic system, and the cell parameters were as follows： a=3.598 nm, b =12.910 nm, c =4.343 nm,β= 124.406 °, V=166.441 nm3. In the fluorescence spectrum of hydroquinone lanthanum complex, there were two excitation peaks at wavelengths of 224 and 290 nm, and there was only one emission peak at a wavelength of 328 nm.