liquid-solid chromatography

Liquid-solid chromatography (LSC) is a separation technique where a liquid mobile phase moves through a solid stationary phase, typically packed in a column. This method is a type of chromatography, a process that separates substances based on their differing affinities for the stationary and mobile phases.123

In LSC, the stationary phase is often a polar adsorbent like silica or alumina, which retains polar compounds. The mobile phase, usually a nonpolar or slightly polar solvent, carries the sample through the column. Components that interact more strongly with the stationary phase move slower, while those with weaker interactions travel faster, leading to separation. This technique is effective for separating various organic compounds, including amines, alcohols, esters, and acids.213