稀土饱和漆酚冠醚配合物的合成及镧（Ⅲ）离子选择电极的研究

Syntbcsis of saturatd Urushiol Crown Ether Rare EarthComplexes andthe Lanthanum(Ⅲ)Ion Selective Electrode Using the Same

报道了饱和漆酚３０－冠－１０轻稀土（Ｌｎ＝Ｌａ～Ｎｄ）配合物的合成，通过元素分析、ＩＲ、ＵＶ、摩尔电导和ＤＴＡ等方法对配合物进行了表征；并以饱和漆酚冠醚为传感活性物质，研制了镧（Ⅲ）离子选择电极，它的线性响应范围为１×１０－２～１×１０－６ｍｏｌ／ＬＬａ（ＮＯ３）３，检测下限为１×１０－６ｍｏｌ／ＬＬａ（ＮＯ３）３，对镧离子的选择优于其他镧离子电极。

The complexes of rare earth (Ln = La～Nd)with saturated urushiol crown ether(DSU30C10) have been synthesized in acetonitrile solution. The complexes have been char-acterized by elemental analysis, IR and UV spectra, molar conductance and differential ther-mal anaIvsis,The lanthanutn iOn selective electrode with saturated urushiol crown ether as aneutral carrier exhibited linear responses in 1× 102～1×10 6 mol/LLa(NO3)3. The elec-trode;howed better selectivity than other La(Ⅲ)electrodes reported in literature。