Which component exits the column with the analyte?
Terminology distinguishes liquids entering and leaving a chromatographic column. Eluent represents fresh mobile phase entering, whereas eluate represents mobile phase emerging after interacting with stationary phase and sample components. As solutes partition, they travel at different rates and exit mixed with mobile phase; this outgoing mixture constitutes eluate, containing resolved analytes. Elution describes the process itself. Clear comprehension of eluate helps in fraction collection, quantitative analysis, and linking chromatographic peaks to specific compounds eluting at characteristic retention times during separation.
Ref: NCERT Biology Class XII Principles on Klenow fill-in labeling, Lehninger Chapter 9 DNA cloning techniques, and Molecular Cloning by Sambrook Chapter 10 documenting end-labeling of cohesive termini.