Compute key HPLC performance parameters — theoretical plates (N), resolution (Rs), selectivity (α), capacity factor (k’), and HETP — from retention times and peak widths at half height. Use this tool when developing or troubleshooting a chromatographic method: resolution of 1.5 or higher indicates baseline separation between two peaks, while the plate count measures column efficiency. Tracking these parameters over time helps detect column degradation, and the van Deemter relationship guides optimization of flow rate and particle size for faster more efficient separations.

About HPLC Performance

In HPLC, column performance is measured by the number of theoretical plates (N), resolution (Rs), selectivity (α), and capacity factor (k’). Resolution ≥ 1.5 indicates baseline separation. The van Deemter equation relates HETP to flow rate, particle size, and mass transfer effects — understanding these parameters helps optimize separations for faster, more efficient analyses.