Ionic liquids (ILs) containing colloidal metal organic frameworks (MOFs) have been used as gas chromatography stationary phases to provide distinct separation properties. The behavior of four different organic frameworks in 18 ionic liquids was investigated. Metal organic frameworks flocculated, degraded, or formed colloidal dispersions in ionic liquids. The newly developed stationary phase consisted of colloidal ZIF-8 uniformly dispersed in an imidazolium-based dicationic ionic liquid which provided the first separation of permanent gases via hybrid gas–liquid chromatography. In addition, various groups of alkanes, ketones, alcohols, ethers, and Rohrschneider-McReynolds compounds were separated on this newly developed hybrid stationary phase. Equations for the three-phase model were derived to determine the behavior of solutes with this pseudophase system. Using this model, the distribution constants between all three phases were calculated. It was shown that the metal organic framework had a significant effect on solute partitioning to the stationary phase.

含有胶体金属有机骨架 (MOF) 的离子液体 (IL) 已被用作气相色谱固定相，以提供独特的分离特性。研究了 18 种离子液体中四种不同有机骨架的行为。金属有机框架在离子液体中絮凝、降解或形成胶体分散体。新开发的固定相由均匀分散在咪唑基双阳离子液体中的胶体 ZIF-8 组成，首次通过混合气液色谱分离永久性气体。此外，各种组的烷烃、酮、醇、醚和 Rohrschneider-McReynolds 化合物在这种新开发的混合固定相上得到分离。推导出三相模型的方程式以确定溶质在该假相系统中的行为。使用该模型，计算了所有三相之间的分布常数。结果表明，金属有机骨架对溶质分配到固定相有显着影响。