What is Eluent in Chromatography?

Definition of eluent in Chromatography:

Eluent in chromatography is the mobile phase solvent that flows through the chromatographic system and carries analytes during separation. The composition of the eluent determines how strongly analytes interact with the stationary phase during migration. Changes in eluent polarity alter the rate at which analytes move through the chromatographic system. Eluent strength controls the balance between analyte retention on the stationary phase and movement with the mobile phase.