Diglycolamide (DGA)-functionalized tripodal ligands offer the required nine-coordinated complex for effective binding to a trivalent lanthanide / actinide ion. A N-pivot tripodal ligand (TREN-DGA) containing three DGA pendant arms was evaluated for the extraction and supported liquid membrane transport studies using PTFE flat sheets. Solvent extraction studies indicated preferential extraction of 1:1 (M:L) species, while the metal ion extraction increased with increasing HNO₃ concentration conforming to a solvated species extraction. Flat sheet-supported liquid membrane studies, carried out using 4.0x10^-3 M TREN-DGA in 95% n-dodecane + 5% iso-decanol indicated faster mass transport for Eu³⁺ ion as compared to Am³⁺ ion. The determined transport parameters indicated slow diffusion of the M-TREN-DGA (M = Am or Eu) complex being the rate-determining step. The transport of lanthanides and actinides followed the trend: Eu³⁺>Am³⁺~Pu⁴⁺ > >UO₂²⁺ and Am can be selectively separated from a mixture of U and Pu by oxidizing the latter to its +6 oxidation state. The liquid membrane stability was not encouraging and was deteriorating the transport efficiency with time, which was attributed to carrier loss into the aqueous phases.

二甘醇酰胺（DGA）官能化的三脚架配体提供了有效结合三价镧系元素/ act系元素离子所需的九配位配合物。使用PTFE平板评估了包含三个DGA侧臂的N轴三脚架配体（TREN-DGA）的提取和支撑液膜传输研究。溶剂萃取研究表明，优先萃取1：1（M：L）物质，而金属离子萃取则随着HNO ₃浓度的增加而增加，这与溶剂化物质的萃取相符。使用4.0x10 ^-3 M TREN-DGA在95％正十二烷+ 5％异癸醇中进行的平板支撑液膜研究表明，与Am ³⁺相比，Eu ³⁺离子的质量传输更快离子。确定的传输参数表明，M-TREN-DGA（M = Am或Eu）配合物的缓慢扩散是决定速率的步骤。镧系元素和锕系元素的传送，随后的趋势：Eu的³⁺ >上午³⁺〜莆⁴⁺  >> UO ₂ ²⁺和AM可以选择性地从U和钚的混合物通过氧化后者到其+6氧化态分离。液膜的稳定性令人不快，并且随着时间的流逝降低了运输效率，这归因于载体损失到水相中。