Britannica AI Icon

Quick Summary

Elution chromatography is a method used in analytical chemistry to separate components of a mixture. In this technique, a mobile phase (either liquid or gas) continuously flows through a stationary phase packed within a column. As the mixture travels through the column, its components distribute themselves based on their differing affinities for the stationary and mobile phases. Components with a stronger attraction to the stationary phase move more slowly and take longer to elute (exit the column), while those less attracted move faster. This differential migration allows for the separation of the mixture's constituents, which are then detected as they emerge from the column.123

Summary created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Ask Britannica AI about this topic

Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.