Task: Text Categorization
Input (English): Porath and Flodin introduced dextran-based gels for the size-exclusion variety of this process, and this process's optimal velocity can be found with the Van Deemter equation. The analyte is polar and the column non-polar in the reverse-phase version of the(*) high-performance liquid type of this process. The retention time is calculated as the sample distance divided by the solvent-front distance in the thin-layer and paper versions of this process. For 10 points, identify this technique that passes a mobile phase through a stationary phase to separate constituents of a mixture.
Output (English): Science