programmed-flow chromatography (flow programming)

https://doi.org/10.1351/goldbook.P04870
A procedure in which the rate of flow of the mobile phase is changed systematically during a part or whole of the separation.
Source:
PAC, 1993, 65, 819. (Nomenclature for chromatography (IUPAC Recommendations 1993)) on page 827 [Terms] [Paper]