Displacement chromatography is a way of using the chromatographic technique, in which the solutes are separated in bands in the stationary phase. Because the stationary phase is a liquid in CCC, it possible to stop the displacement process when the separated bands are still in the stationary phase. The collection of the stationary phase bands is possible. This way of using a CCC instrument was described for the separation of transition metal ions. Co2+, Ni2+, Cu2+, and Zn2+were separated using diethylhexyl phosphoric acid (DEHPA) and heptane as the stationary phase through a reversed micelle extraction process.