“…A number of tools, including calorimetry 1,2 , conductometry 3 , potentiometry 4 , and spectrometry 5,6 , have been developed, and successfully employed. We have shown that some separation methods, such as chromatography 13,14 and electrophoresis 15 , are suitable for the determination of polyether complexation constants in solution, and have elucidated some aspects in polyether chemistry, which have not been understood because of the lack of effective approaches. 14,16 These developed methods have some advantages over other conventional tools; i.e.…”