The first step in any HPLC program is selecting the column. For non-chiral separations, reversed-phase chromatography (RPC) is the most common mode, utilizing a non-polar stationary phase (e.g., C18, C8) and a polar mobile phase.
Modern HPLC programs include a temperature setting (typically 25°C to 50°C). Heating the column lowers the viscosity of the mobile phase, leading to lower pressures and more reproducible retention times. 2. Steps to Developing a Robust HPLC Program Step 1: Mobile Phase Selection
An HPLC (High-Performance Liquid Chromatography) program, often referred to as a chromatographic method
Setting the speed at which the mobile phase travels through the column.
Maintaining a constant temperature (usually via a column oven) ensures reproducibility. Higher temperatures lower the viscosity of the mobile phase, which can improve separation efficiency and reduce pressure.